Match the following:

List-I	List-II
a. Augustine	1. Problem of evil
b. Anselm	2. Idea of perfect being
c. Aquinas	3. Essences and existence
d. Graded excellence	4. God is the ground of all perfections

A. a-1, b-2, c-3, d-4

B. a-2, b-3, c-4, d-1

C. a-4, b-3, c-2, d-1

D. a-1, b-4, c-3, d-2

Answer: Option A