In this kind of question, make sure that the answer choice is relevant to both passages.
A: Not relevant to either passage. Briefly mentioned in passage A (Charles Elton's view) but this is not the main point of the passage and in fact, it is disproven in passage A.
B: Briefly discussed in passage B only (last para.).
C: Not discussed in either passage.
D: Yes!
E: Not substantially discussed in either passage.