Question

I hope that I have positively contributed to the __________________ of his moral fiber.
A.
Corrugation
B.
Vulnerability
C.
Indolence
D.
Edification
E.
Mining

Answer 1

Edification. Edification is the moral of someones beliefs, so they are "part of his moral fiber", so you would hope to positively contribute to that. 

Answer 2

D.Edification. im 100% its right