It should be C) Make the verb tenses consistent. "Develop" should be developing, so that it is consistent and parallel with performing and studying.
        
                    
             
        
        
        
Answer:
I think it's B, correct me if I'm wrong.
 
        
             
        
        
        
Answer:
1.  D. To encourage Amaru to march on Cuzco immediately. 
2. C. Attack the enemy
3. C. He is showing an unconcern for the matter at hand.
4. C. She was uncomfortable leading soldiers into battle
Explanation:
 
        
             
        
        
        
1. an essay about feminism in the twentieth century
2. The Washington Post was awarded four Pulitzer Prizes in 2010