Answer:
A B E.
Explanation:
A factual question can be defined as those questions that aim at providing and collecting information. These questions can be answered using facts, can be proven, and have only one answer.
Whereas, open-ended questions are those whose answers require explanation than just one-word answers.
<u>From the given lists, the questions that would be appropriate for researching are A, B, and E.</u>
<u>It is because these questions are based on facts and statistics, have one answer and no supplementary answers could be provided for these questions</u>.
Thus, the correct options are A, B, and E.