Anyone know this answer bc i’m stuck?

C

Step-by-step explanation:

universal set = {1,2,3,4,5,6,7,8}

set a = the odd numbers = {1,3,5,7}

set b = the prime numbers = {2,3,5,7,}

a intersect b = numbers in both a and b = {3,5,7}

the answer is 62.8 cubic units