so than given that the diameter of a circle is 28 inches so from this result the radius is d/2 = 28/2 = 14 inchesĀ
than the circumference of circle will be equal 23,1414 = 6,28 *14 = 87,92 so rounded equal 88 in.
so this mean that choice c.) is right sureĀ
hope this will help you