If the ratio of pounds of apples to pounds of peaches sold at a farm stand is 3 : 4, which could be the pounds of apples and peaches sold?
9 pounds of apples and 16 pounds of peaches.
13 pounds of apples and 14 pounds of peaches.
21 pounds of apples and 28 pounds of peaches.
34 pounds of apples and 43 pounds of peaches.