A research question is a question that ........
A. we ask about the list of references
B. we ask in the end of our research and look to find no answer for
C. we answer at the beginning of our research and look to find a question for
D. we ask in the beginning of our research and look to find an answer for
هذا سؤال جا بالاختبار ولا يخيل لي انا سرت اخربط بين مذاكرتي واسئلة الاختبار