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 is an example of balking?

A) While waiting in the queue to buy concert tickets,Elizabeth gave up her turn to an old lady who was standing right behind her.
B) Elizabeth got tired of waiting in the queue and decided she would come back later to buy the concert tickets.
C) Elizabeth chose the shortest queue when she arrived to buy concert tickets for herself and a friend.
D) When Elizabeth arrived at the booking counter and saw the length of all the queues,she decided she would try booking the tickets online instead.