Answer:
A - accusations, exonerate.
Explanation:
Imputation is an accusation, and exculpate means to show or declare that someone is not guilty of wrong doing, which is basically the definition of exonerate.
One of Satan's main problems in the book written by John Milton, "Paradise Lost" is that God can turn evil deeds to his own good ends. This problem motivates Satan by continuously thinking of ways to solve this problem and looking at other possible angles on how to attack the problem.
I think it is b. Most beautiful, as c and d don't make sense. A is a possibility, but I'm pretty sure it is b. Most beautiful.
the preposition is c) Under
