Which of the following is an example of an open-ended question?

A) "What did you see before entering the intersection?"
B) "Were you late for work that morning?"
C) "Was there anyone in the car with you at the time?"
D) "Were you exceeding the speed limit when the accident occurred?"

Open-ended questions are designed to encourage a full, meaningful answer using the subject's own knowledge and/or feelings. They cannot be answered with a simple "yes" or "no". Option A, "What did you see before entering the intersection?", is an example of an open-ended question because it requires more than a yes or no answer and encourages the respondent to describe their experience or observation in detail.