Emphasizing: " AND " "CAN"

And,and the auxiliary verb can are usually reduce.But these structure words are emphasized when they are the focus word in a sentence.

Examples: 

A.Our specialties are steak and lobster.

B. Terrific! I'll have steak and lobster! 

____

A. Which is more important - intelligence or effort?

B. Both.  You need intelligence and effort?