For the spinner above, the probability of landing on black is 1/2 and the probability of landing on red is 1/3. Suppose is is spun four times. What is the pobability that it will land on white all fou

For the spinner above, the probability of landing on black is 1/2 and the probability of landing on red is 1/3. Suppose is is spun four times. What is the pobability that it will land on white all four times?

A. 1/216

B. 1/24

C. 1/4096

D. 1/1296

My answer was A. 1/216 but, that was wrong. Cant figure this out.