Medical researchers are striving to ---- how genetic mutations trigger cellular resistance against targeted immunotherapy drugs.

Answer and explanation

Correct answer: D. elucidate

  1. Step 1: Researchers aim to clarify, explain, and illuminate unknown biochemical mechanisms.
  2. Step 2: 'Elucidate' means to make something clear or explain lucidly.
Answer
elucidate.
Why not the others: 'Obfuscate' means to deliberately make obscure; 'Invalidate' means to disprove; 'Relinquish' means to renounce or give up.

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