Okay well first you’re going to want to multiply the amount of employees by the amount of skateboards they each make:
32 • 8 = 256
Then, you’re going to take the result and multiply it by the amount of days (31):
256 • 31 = 7,936
The closest number to 7,936 (from the given answers) would be 9,000.
Your answer would then be C.