A dozen eggs and 10 pounds of oranges are currently at the same price. If the price of a dozen eggs rises by 9 percent and the price of oranges rises by 6 %. How much more will it cost to buy a dozen eggs and 10 pounds of oranges . Choose the correct choice from the following choices:
A) 5%
B) 10%
C) 15%
D) 20%
E) 25%
Say currently both a dozen eggs and 10 pounds of oranges cost $100 (they are at the same price). So, to buy a dozen eggs and 10 pounds of oranges we need $100.   After the increase, the price of a dozen eggs will be $109 and the price of 10 pounds of oranges will be $106. So after the increase, to buy a dozen eggs and 10 pounds of oranges we'll need $215.   Increase = 15%.   Answer: 15%.
<result>C</result>
A dozen eggs and 10 pounds of oranges are currently at the same price. If the price of a dozen eggs rises by 9 percent and the price of oranges rises by 6 %. How much more will it cost to buy a dozen eggs and 10 pounds of oranges .