Hey guys,
Sameer nailed it on this one! Choice E is incorrectly trying to compare the number (seven have been killed) to the people (fewer than the ones...). And that doesn't work.
Note here that "ones" plays the role of a pronoun for "people". And you wouldn't ever say "fewer than the people". "Fewer" has to describe a number, so "fewer" in B is really parallel to "seven" at the beginning of sentence.
For the other choices:
A makes the same error as E, plus it also uses "less" instead of "fewer", which you'd need for a plural noun like "people".
B is correct; it's a logical, parallel comparison (seven people have been killed vs. fewer (people) have been killed)
C uses that word "which", which makes it a reflexive pronoun and therefore "is less" would have to modify "movies". That's not logical.
D makes the same mistake as A and D - "a number lower than the people" isn't a logical comparison, as it compares a number to people.
One important tip here - when you see pronouns and comparisons together ("that of"; "those of"; etc.) you'll almost always have to make a determination of which two things are logically being compared, so make that a focal point if you see that kind of setup.
Brian Galvin
GMAT Instructor
Chief Academic Officer
Veritas Prep
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