A trader in the futures market does not need to hold his or her position open until

Question:

A trader in the futures market does not need to hold his or her position open until the delivey) month. Suppose that Selina has an open short position in five CBOT July corn futures contracts. What must she do to close out her position prior to July?
A. None of the other answers is correct.
B. Enter a short position in five CBOT July wheat futures contracts.
C. Enter a short position in five CBOT July corn futures contracts.
D. Enter a long position in five CBOT July corn futures contracts.
E. Enter a long position in five CBOT May corn futures contracts.