أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
D. All of the above is the answer.
D. All of the above
Option D.
I can't exclude any of the first three reasons, therefor I will choose All of them (D)
I agree with my colleagues Choice D
My answer is also choice (D) All of the above
Answer is D