Frank jogs in a circular garden every day. The ground measures 5 feet from the center to the inner circle and an extra 3 feet from the inner circle to the outer circle. If Frank jogs around the outer circle twice, how much distance does he cover?

A. 2p (5 + 8)

B. 2p (10 + 16)

C. p (8 - 5)

D. 2p (8 + 8) ... ?

Radius of the inner circle = 5 feet

Radius of the outer circle = 8 feet

Then

Circumference of the outer circle = 2 * pi * Radius of outer circle

= 2pi (8)

Since Frank jogs twice around the outer circle, So

Total distance covered by Frank = 2pi (8 + 8)

From the above deduction, it can be easily concluded that the correct option among all the options that are given in the question is the fourth option or option "D".