Which of the following objects would have the most inertia?

A.A sphere with a radius of 4 cm and a mass of 15 grams.

B.A sphere with a radius of 8 cm and a mass of 27 grams.

C.A sphere with a radius of 5 cm and a mass of 34 grams.

D.A sphere with a radius of 15 cm and a mass of 6 grams.