I could not support my friend because I thought the whole idea was PREPOSTEROUS. A. incredibleB. prematureC. outrageousD. false

To determine the correct answer, we need to understand the meaning of the word "preposterous."

1. "Preposterous" means something that is absurd, ridiculous, or outrageous.

2. Let's look at the options:

   • A. incredible: This means something that is hard to believe or extraordinary, but not necessarily absurd.
   • B. premature: This means something that happens too early, which is not the same as being absurd.
   • C. outrageous: This means something that is shockingly bad or excessive, which aligns well with the meaning of "preposterous."
   • D. false: This means something that is not true, which is different from being absurd.

3. Based on the definitions, the word that best matches "preposterous" is "outrageous."

Therefore, the correct answer is C. outrageous.