Answer:
Option A is the correct answer.
Explanation:
Miles per gallon in first week = 24
Miles per gallon in second week = 24.38
Difference = 24.38 - 24 = 0.38
Miles per gallon in third week = 24.76
Difference = 24.76 - 24.38 = 0.38
Miles per gallon in fourth week = 25.14
Difference = 25.14 - 24.76 = 0.38
So all the difference in consecutive weeks are same.
So this miles per gallon varies like AP.
The common difference is 0.38
Option A is the correct answer.