An internal conflict features character vs

An internal conflict features character vs self/inner conflict.

Internal conflict focuses on the character who struggles against himself/herself, fears, flaws, obsessions or any other feature that creates a psychological conflict, which often results in character development and narrative tension.  

On the other hand, external conflict focuses on the struggle of the character vs. nature or any other external force (other characters or circumstances).

the answer is definitely d. sorry for a late response.