You Should Avoid the Temptation to Do Too Much in a Single

You should avoid the temptation to do too much in a single survey, because:

A) this leads to an inordinately long questionnaire that may confuse or overburden your participants.
B) it may make it more difficult for you to summarize and analyze your data.
C) it leads to an extremely long questionnaire that may confuse participants and make it difficult to summarize and analyze data.
D) you will not have enough time left for coffee breaks.