Question

Complete with the correct direct object pronoun:

Ella no come la carne. ¿Él _____ come?
A.)lo
B.)la
C.)los
D.)las

Answer 1

The direct object here is la carne, feminine and singular. 
So the direct object pronoun is "la", feminine and singular. 

Answer 2

The DOP( Direct object pronoun) here is Carne. Carne is feminine and singular. So B) la is the only answer that can work.