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Heating-oil prices

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Heating-oil prices [#permalink] New post 17 Nov 2011, 13:51
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

57% (01:46) correct 43% (00:30) wrong based on 23 sessions
I don't understand the OE. Please, your comments.

Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were last year.

A)
B) Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did
C) Expectations are for heating-oil prices to be higher this year than last year's becuase refiners are paying about $5 a barrel for crude oil more than they did
D) It is the expectation that heating-oil prices will be higher this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were
E) It is the expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did

These are my doubts:
Option A is not clear to me because it seems that it is comparing "heating-oil prices" with "last [year]", so it would be incorrect, but it is the OA. In this sense, I suppose that option A is ommiting some words, but I cannot identify which words. It is not clear whether the prices in this year are expected to be higher than the estimated prices in the last year or the real prices in that year. For example:
Heating-oil prices are expected to be higher this year than [they were] last because refiners are paying about $5 a barrel more for crude oil than they were.
The first "were" seems that it is ommiting "expected to be", so we would be talking about the estimated prices last year. But if it is not ommiting "expected to be", it could seem that we are talking about the real prices.

But if we write in this way:
Heating-oil prices are expected to be higher this year than last year's [prices] because ....
Here we are comparing nouns: heating-oil prices of this year with those prices of the las year (last year's). However, the OE says that this is not parallel. Why? I don't understand it.

Please your comments about it.
[Reveal] Spoiler: OA

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Re: Heating-oil prices [#permalink] New post 17 Nov 2011, 15:10
Ok - lets consider why others are NOT correct.

B) Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did. Higher than something is correct and not higher...over...[color=#4000FF][/color]

C) Expectations are for heating-oil prices(distorts meaning) to be higher this year than last year's becuase refiners are paying about $5 a barrel for crude oil more than they did. Clearly a run on sentence and is not preferred on GMAT.

D) It is the expectation that heating-oil prices will be higher this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were. (It is the expectation----(wordy) and higher....over is oncorrect too)

E) It is the expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did. (It is the expected ---> incorrect . rise higher --> redundant words)

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Re: Heating-oil prices [#permalink] New post 17 Nov 2011, 17:42
Hi metallicafan, parallelism is the most popular topic, but it also is the tough topic, especially parallel in comparisons. I always have problem with "which items is parallel in comparisons". You should read again the comparisons topic in MGMAT SC, you can improve this problem. I swear. Although I read this chapter many times, I still sometimes got wrong answer with comparisons.
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Re: Heating-oil prices   [#permalink] 17 Nov 2011, 17:42
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51 Experts publish their posts in the topic Heating-oil prices are expected to be higher th is year than papillon86 28 03 Jun 2010, 19:17
1 Heating-oil prices cici 7 29 Jun 2009, 23:49
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