Andromeda Strain

[praneets_1]

When the technique known as gene-splicing was invented in the early 1970's, it was feared that scientists
might inadvertently create an "Andromeda strain," a microbe never before seen on Earth that might escape
from the laboratory and it would kill vast numbers of humans who would have no natural defenses against it.
(A) it would kill vast numbers of humans who would have no natural defenses against it
(B) it might kill vast numbers of humans with no natural defenses against it
(C) kill vast numbers of humans who would have no natural defenses against it
(D) kill vast numbers of humans who have no natural defenses against them
(E) kill vast numbers of humans with no natural defenses against them


My choice :

SPOILER: B

Correct choice:

SPOILER: C

[sandeep_142]

I thought "numbers of" is always incorrect. Is there a typo ?

that might escape.... and kill ..... this is parallel. So, A and B are out

D - uses incorrect pronoun "them"
E - same as D

C is correct

[Aqueel]

I too think so. I eliminated all answers due to "numbers of".

jokes apart, "with no natural defences" is not properly referring to humans. Thats why I eliminated it. I think basic rule for SC is to "never asume anything". Here people will think it is referring back to humans.

I may be wrong. Please correct me.

[iamproxied]

I think would in C makes it a better choice.
D suggests that there are some peopl who were having natural defenses
E I felt that virus is killing human with something.
Only C gave the meaning that it might kill humans who might not have defenses against.

D and E are wrong because of "them". defenses against virus.

[iamproxied]

I have few questions in 1000 sets with numbers of as right choice.
The numbers of is wrong. Numbers of is not incorrect.

[Kuba]

C is correct. First of all because it follows the rules of parallelism "...that might escape....and kill" and second of all because of the right pronoun usage (it=microbe).

[saketbansal]

should not we have kills in C at the place of kill

[gocool]

I think it should be kill since 'kills vast number of humans' does not sound right. I think the answer is C

[saketbansal]

but microbe is singular and it is also used as pronoun.... i do enderstand C is the best just wanted to know logic of Kill / Kills in this sentence

[nups_mba]

reason for C:

it should be "might escape and kill" and not "might escape and kills"