Janice rode her bike at an average of 12 miles per hour for 3 hours. Renee rode her bike at an average of 14 miles per hour for 2 hours.


Which explanation correctly tells how to calculate how many more miles Janice rode her bike than Renee?


A.

Step 1 Divide: 12 ÷ 3.

Step 2 Divide: 14 ÷ 2.

Step 3 Add the two quotients.


B.

Step 1 Divide: 12 ÷ 3.

Step 2 Divide: 14 ÷ 2.

Step 3 Subtract the two quotients.


C.

Step 1 Multiply: 12 × 3

Step 2 Multiply: 14 × 2.

Step 3 Add the two products.


D.

Step 1 Multiply: 12 × 3

Step 2 Multiply: 14 × 2.

Step 3 Subtract the two products.