The Chess Club president brought donuts to the club meeting each week. As the club grew, more donuts were needed so that each member could have a donut. The table below shows the ratios of boxed donuts to the cost.


Donuts 2 4 B 8
Cost A 31.60 39.50 C


Determine which table has the correct values for A, B, and C.

Donuts 2 4 5 8
Cost 15.80 31.60 39.50 63.20

Donuts 2 4 6 8
Cost 7.90 31.60 39.50 63.20

Donuts 2 4 7 8
Cost 7.09 31.60 39.50 56.72

Donuts 2 4 6 8
Cost 15.80 31.60 39.50 56.72