How many of each coin are in the piggy bank?
a. 50 pennies, 45 nickels, 165 dimes, 58 quarters
b. 55 pennies, 50 nickels, 150 dimes, 60 quarters
c. 45 pennies, 40 nickels, 170 dimes, 50 quarters
d. 60 pennies, 55 nickels, 150 dimes, 65 quarters