Use the Case Given Below to Answer the Following Question(s)

Use the case given below to answer the following question(s) .
Reuben went to a diner to have a hamburger and French fries.The person at the cash counter assigned the number 27 to Reuben and told him he would have to wait for his turn.
-Which of the following,if true,would suggest that Reuben jockeyed?

A) He moved to the next counter when he realized it had fewer people.
B) He left the diner and decided to eat somewhere else.
C) He exchanged his turn with an old gentleman after him who had been assigned the waiting number 28.
D) He tried to exchange his turn with a lady who would be serviced ahead of him,citing a personal emergency.