Pathos is the power of a person, situation, piece of writing, or work of art to cause feelings of sadness, especially because people feel sympathy. So, pity would match best with it.

Paucity: smallness of quantity; scarcity; scantiness:

A pedant is  a person who is excessively concerned with minor details and rules or with displaying academic learning. So, intellectual fits best, Therefore, Option D is the correct answer.