How many nickels and dimes are in $2.40 if there are two times more nickels than dimes?
A12 nickels and 6 dimes
B6 Nickels and 12 dimes
C24 Nickels and 12 Dimes
D12 Nickels and 24 dimes
A12 nickels and 6 dimes
B6 Nickels and 12 dimes
C24 Nickels and 12 Dimes
D12 Nickels and 24 dimes