A dairy farmer delivered milk over two days.

On Monday, he used 5 gallons of fuel to drive 40 miles.

On Tuesday, he drove 120 miles at an average rate of 10 miles per gallon of fuel.

Which of the following sentences about the miles traveled per gallon of fuel on Monday and the number of gallons of fuel used on Tuesday is true?

A: The dairy farmer drove at an average rate of 8 miles per gallon of fuel on Monday, and used a total of 12 gallons of fuel on Tuesday.

B: The dairy farmer drove at an average rate of 0.125 miles per gallon of fuel on Monday, and used a total of 0.1 gallon of fuel on Tuesday.

C: The dairy farmer drove at an average rate of 40 miles per gallon of fuel on Monday, and used a total of 120 gallons of fuel on Tuesday.

D: The dairy farmer drove at an average rate of 5 miles per gallon of fuel on Monday, and used a total of 10 gallons of fuel on Tuesday.