Hi, I'm stuck on this question and would really appreciate your help. I was torn between answers B and D.
B: I thought this answer was stronger, because I thought the passage was primarily concerned with reasons the wave theory was discredited (the first paragraph beings with, "the classical wave theory of radiation began to encounter obstacles" and then the passage lists some of the obstacles like the blackbody object experiments, Planck, Einstein, etc)
D: ...
News of