In John’s Grocery Store, the ratio of apples to grapes is the same as the ratio of oranges to bananas. If the ratio of apples to grapes is 6:7, then which of the following statements is possible?
A. There are 14 oranges and 12 bananas
B. There are 12 oranges and 16 bananas
C. There are 18 oranges and 21 bananas
D. There are 12 oranges and 24 bananas