The reason i picked B over A is the last few words in A 'from the beginning of agriculture'. Is this grammatically correct as from the beginning of something should denote a time period, e.g. from the 70s. Please explain

Hi Shreya, the notion of time is implied here; basically it suggests from (the time of) the beginning of agriculture.

This is quite a common construct in GMAT, and it might be a good idea to get comfortable with this.

Another similar example:

The nineteenth-century chemist Humphry Davy presented the results of his early experiments in his "Essay on Heat and Light", a critique of all chemistry since Robert Boyle as well as a vision of a new chemistry that Davy hoped to found.
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Prepositions are the words that start off a prepositional phrase, i.e. "a pile OF books" ("of" is the preposition and "of books" is the prepositional phrase).

And, yes, prepositional phrases can certainly act as modifiers! In the example above, "of books" describes the "pile."

Keep in mind that the GMAT is fairly lenient when it comes to comma rules, so you always want to look for other decision points first.
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VeritasKarishma
To clarify, why wouldn't you need a comma right after 2000 to be ---> "Between 1990 and 2000, the..."? My ear wanted a comma there. Thank you in advance

GMAT doesn't really test comma rules so do not eliminate any option on the basis of comma alone. Look for other decision points.
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Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.


(A) Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture

(B) Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began

(C) The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture

(D) The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began

(E) The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture
Look at the meaning, what it says the growth of the global economy and global economy exceeds. I want to make it simple by the way it is a placeholder that I mention. I am the person who is targeting Q51 so I noticed that growth is not exact way the sentence trying to figure. It talks about the economy thats exceeds in general. The growth of global economy and global economy is very different thing I thing Thats why ninja says focus on meaning

A. Correct
B.Idiom Error, From X to Y; from when is wrong, could have been from beginning of agriculture to 1950
C. Need past tense + usage of that which together is almost always wrong on GMAT
D. Need past tense
E. it pronoun issue, growth did not do anything, but growth 'was ''

Hi MartyTargetTestPrep ReedArnoldMPREP

Between (A) and (B) - i chose (B).

I disregarded (A) because of the "IT" in (A)

In (A) - isnt the "IT" referring back to the SAME ANTECEDENT, specifically global economy (between 1990 and 2000) ?

So (A) - the comparison is



That doesnt make sense obviously.

Alternativevly, (B) - I prefer "that" -- because "that" forces a NEW COPY of the antecedent. In (B) -- growth rate 1 is being compared to growth rate 2

Hi jabhatta2.

The issue is that the (A) version doesn't say, "the 1990-2000 global economy." Rather, the (A) version says, "Between 1990 and 2000 the global economy grew ...."

So, the modifier "between 1990 and 2000" doesn't modify "global economy." If modifies "grew," communicating that the economy grew between 1990 and 2000.

In fact, if you think about it, what exactly would the BETWEEN 1990 and 2000 global economy be anyway?

(There really should be a comma after "2000" to make the above clearer, but still, that meaning is the meaning conveyed by the sentence even as written.)

So, the antecedent of "it" in the (A) version is simply "the global economy," with the result that the (A) version conveys a meaning that makes sense, which is that the global economy grew more between 1990 and 2000 than the global economy did during the other time period.
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MartyTargetTestPrep
Thank you! To clarify, "did" functions as a verb that can be used to replace another verb phase, correct? So, "did" replaces "grew"? Thank you again for all of your time and help

Yes, what you said is completely correct.
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egmat
Thank you for the thorough video explanation on this question. Can you further explain how a phrase cannot be parallel to a clause with another example? I researched further online for the differences between phrases and clauses, but I was confused by some of the grammar jargon that I came across. Thank you for your time and help.