Which sentence contains an inappropriate shift in tense?

A.
As long as we travel together, we will have a wonderful time.

B.
When the summer ends, that swimsuit will have been worn hundreds of times.

C.

By the time the sun set, I will have been working for eight hours.

Question

Which sentence contains an inappropriate shift in tense? 	
	
 
A.
	As long as we travel together, we will have a wonderful time.
	
 
B.
	When the summer ends, that swimsuit will have been worn hundreds of times.
	
 
C.
	

By the time the sun set, I will have been working for eight hours.

anonymous · Answer

Sorry no one answered this, I believe it is C.