Here is something I found on other forum, might be of some help.

Assumption is something you need for you to draw your conclusion. Inference is a judgement that you draw from existing facts. Inference is the stage just before the conclusion, it may or may not correct. Say, there is a factor of 'doubt' attached with inference but not with conclusion.

Is it A?

what is OA?

Can anybody please confirm?

albertrahul wrote:Here is something I found on other forum, might be of some help.

Assumption is something you need for you to draw your conclusion. Inference is a judgement that you draw from existing facts. Inference is the stage just before the conclusion, it may or may not correct. Say, there is a factor of 'doubt' attached with inference but not with conclusion.

This summary isn't accurate.

An assumption is a missing but necessary piece of evidence. Basically, it's an essential building block of an argument. An assumption is something that must be true in order for the argument to make sense.

An inference is (at least on the GMAT) a conclusion; not necessarily the "main conclusion", but a conclusion nonetheless. A valid inference is something that must be true based on one or more of the statements in the stimulus.

Assumptions are always found in arguments: i.e. stimuli that can be broken down into evidence and conclusion. Inferences, on the other hand, can be drawn from a set of facts, rather than an argument. On the GMAT, we always presuppose that the statements in the stimulus are true when drawing inferences.

HI Sukrant,

I agree with OA.

Here is the reason,

in the context of this question & answer choices;

clearly the conclusion of the argument is the second bold faced clause and the first bold faced clause offering its support for the conclusion.

if you observe carefully, answer choices B,C, E indicate that the evidence and the conclusion are against, which is not correct.

As for answer choice A, the first bold faced clause is not a explanation but rather a definite statement about comet's property.

So we are left with choice E and nothing wrong with it.

Cheers

I did not notice the hidden OA.

Thanks Verbal Attack.

Please refer to this thread for the Question

https://www.beatthegmat.com/astronomer-s ... 16153.html

1 minute

IMO(E)..

Second part is clearly the conclusion. First is supporting or giving a argument to put forward the conclusion

I agree with you guys. I also think that the right answer is E