Need help with practice MCAT question (acidit, basic or neutral?)

[Nick tringali]

The answer key states the the answer is D but the explanation makes no sense to me. “ amphoteric means that it could behave either as an acid or as a base. The alcohol group is not the key in aqueous solution. Terminal Alkynes are acidic”. I don’t see a terminal triple bond.

 

[mjc123]

Nor do I. I assume there must be a mistake in the book. (You have got the right answer book for the right questions, haven't you? Same edition of both?)

 

[Nick tringali]

Nor do I. I assume there must be a mistake in the book. (You have got the right answer book for the right questions, haven't you? Same edition of both?)

Yes, it must be a book mistake. Thank you.