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The reason that lean meats, such as salmon, improve mood in

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The reason that lean meats, such as salmon, improve mood in [#permalink] New post 07 Jan 2013, 20:53
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A
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C
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57% (02:14) correct 42% (01:23) wrong based on 70 sessions
The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise; this increase helps to keep emotions under control by aiding sleep, calming anxiety, and relieving depression.

(A) The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise
(B) The reason that lean meats, such as salmon, improves mood in some people is because they contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise
(C) The reason that lean meats, such as salmon, improves mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin like relaxation and exercise
(D) Lean meats, such as salmon, improve mood in some people because they contain the chemical tryptophan, which promotes an increase in serotonin, just like relaxation and exercise do
(E) The reason that lean meats, such as salmon, improve mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise
[Reveal] Spoiler: OA

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Re: The reason that lean meats, such as salmon, improve mood in [#permalink] New post 07 Jan 2013, 21:11
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PraPon wrote:
The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise; this increase helps to keep emotions under control by aiding sleep, calming anxiety, and relieving depression.

(A) The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise
(B) The reason that lean meats, such as salmon, improves mood in some people is because they contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise
(C) The reason that lean meats, such as salmon, improves mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin like relaxation and exercise
(D) Lean meats, such as salmon, improve mood in some people because they contain the chemical tryptophan, which promotes an increase in serotonin, just like relaxation and exercise do
(E) The reason that lean meats, such as salmon, improve mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise


The logic of the sentence is that lean meats improve mood because these food contain some chemical which is responsible for the same increase in serotonin as do relaxation and exercise.

A and B can be straightaway eliminated on the basis of redundancy issue. "Reason....because" is redundant. "They" is ambigous.
C has SV disagreement; illogical comparsion.
D "they" is ambigous.

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Re: The reason that lean meats, such as salmon, improve mood in [#permalink] New post 07 Jan 2013, 22:42
The choice A also makes which/that error. “That” is correctly used to add information necessary to identify the noun that precedes it (in this case, “tryptophan”). Here, the choice has already identified tryptophan by name, so the additional information is unnecessary—thus, “that” should be replaced with “which.”
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Re: The reason that lean meats, such as salmon, improve mood in [#permalink] New post 10 Jan 2013, 00:03
Marcab wrote:
PraPon wrote:
The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise; this increase helps to keep emotions under control by aiding sleep, calming anxiety, and relieving depression.

(A) The reason that lean meats, such as salmon, improve mood in some people is because these foods contain the chemical tryptophan that promotes the same increase in serotonin as do relaxation and exercise
(B) The reason that lean meats, such as salmon, improves mood in some people is because they contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise
(C) The reason that lean meats, such as salmon, improves mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin like relaxation and exercise
(D) Lean meats, such as salmon, improve mood in some people because they contain the chemical tryptophan, which promotes an increase in serotonin, just like relaxation and exercise do
(E) The reason that lean meats, such as salmon, improve mood in some people is that these foods contain the chemical tryptophan, which promotes the same increase in serotonin as do relaxation and exercise


D "they" is ambigous.

I agree to the rest of your reasoning except D. D is wrong not because "they" is ambiguous (indeed it is not), but because incorrect usage of just like in this option. Just like is considered bad idiomatically, along with incorrect usage of verb "do" with a preposition "like"
Re: The reason that lean meats, such as salmon, improve mood in   [#permalink] 10 Jan 2013, 00:03
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