I'm trying to speed up my CR responses by using
Scope to quickly eliminate choices, and then focus on the remaining ones with assumptions analysis.
Here's how I had approached this question:
Many major scientific discoveries of the past were the product of serendipity, the chance discovery of valuable findings that investigators had not purposely sought. Now, however, scientific research tends to be so costly that investigators are heavily dependent on large grants to fund their research. Because such grants require investigators to provide the grant sponsors with clear projections of the outcome of the proposed research, investigators ignore anything that does not directly bear on the funded research. Therefore, under the prevailing circumstances, serendipity can no longer play a role in scientific discovery.
Scope: Role of Serendipity (lucky findings) in recent research and impact of goal-oriented grant writing on the same.Which one of the following is an assumption on which the argument depends?
(A) Only findings that an investigator purposely seeks can directly bear on that investigator's research.
Within Scope - Retain
(B) In the past few scientific investigators attempted to make clear predictions of the outcome of their research.
Out of scope: We're interested in impact on recent research, not past - Eliminate(C) Dependence on large grants is preventing investigators from conducting the type of scientific research that those investigators would personally prefer.
Out of scope: Not concerned with investigators' personal preferences. - Eliminate
(D) All scientific investigators who provide grant sponsors with clear projections of the outcome of their research receive at least some of the grants for which they apply.
Out of scope: How many receive grants is irrelevant - Eliminate
(E) In general the most valuable scientific discoveries are the product of serendipity
More or less, a reiteration of the first line of premise. - EliminateThus, going just by scope alone we can eliminate most if not all of the statements!
Please do let me know if this approach makes sense in general. Looking forward to your inputs
And of course, kudos if you found it useful.

Thanks!