HI! please answer the following question with all three parts: Identify the amount, base, and percent in the problem: What is 60% of 485?
A. amount: 485, base: 60, percent: unknown
B. amount: unknown, base: 485, percent: 60%
C. amount: unknown, base: 60, percent: 485
D. amount: 485, base: unknown, percent: 60%

(Hint: I know that the percent is 60% so I just need help with the base and amount. The answer choices will narrow down to B and D)