Help with Support/Contrast

GRE Verbal Problem Solving
1

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My Approach:
If choose just the first part of the sentence (until the “:”), we can chunk the sentence like this:

  1. Academic breakthroughs often yield insights
  2. A field which has repeatedly failed to _______ its theories
  3. Forced to reconsider them

Going by this, I chose the answer for blank 1 as Support: is

Could someone tell me why this is incorrect?

2

I think you’re right, I’ve updated the answer key :slight_smile:

The answer was supposed to be contrast with “is forced to”, but if you make “forced to” part of the idea like you did, then it’s a support.