The scientist's claims, though initially met with _____, were eventually corroborated by experimental data, leading to their widespread acceptance.

✓ Correct Answer: Option A

The claims were 'initially met with' something that later changed to 'widespread acceptance' due to corroboration. 'Skepticism' and 'incredulity' both mean doubt or disbelief, fitting the context of initial resistance. Both A and C are correct options in a Sentence Equivalence question.