Q. If Q & A stands for question and answer (as in a Q & A session), how would you make this a plural, as in “The police officer recorded the [questions and answers] in his notebook”? I assume Q’s & A’s is correct but would appreciate your confirmation.
A. The styling “Q’s & A’s” (with spaces) implies “questions and answers.” For a question-and-answer session, however, we write “Q&A” (with no spaces) and “Q&As” for the plural. The meanings are close but not identical. For the apostrophe in the plurals of individual letters (but not in abbreviations consisting of two letters or more), see CMOS 7.15. For abbreviations containing ampersands, see 10.12.