It was such a strange affair that I could not make head or tail of it. A. face it B. tolerate it C. remember it D. understand it E. believe it

The correct answer is D. understand it.

The phrase “make head or tail of something” means to understand something. In this case, the speaker is saying that they could not understand the strange affair.

The other options are not correct because they do not match the meaning of the phrase “make head or tail of something.”

• Option A, face it, means to deal with something difficult or unpleasant.
• Option B, tolerate it, means to put up with something that is annoying or unpleasant.
• Option C, remember it, means to keep something in one’s memory.
• Option E, believe it, means to accept something as true.