Match the following:

List-I	List-II
a. Protagoras	1. Whatever 'is', we cannot know 'is not'
b. Gorgias	2. Man is the measure of all things
c. Thrasymachus	3. Nothing exists, even if it exists it cannot be known
d. Parmenides	4. Justice is the interest of the strong

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

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

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

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

Answer: Option B