Consider the following functions:

• f(x) is the number of miners working on a day when x stones are mined
• g(x) is the price of a stone in yen () on a day when x miners are working

Suppose both functions are invertible.

What is the practical interpretation of

f^-1(g^1(10))=53?

Group of answer choices

When the price of a stone was 10, the number of workers mining stones was 53.

When the price of a stone was 53, the number of workers mining stones was 10.

On days when 53 stones are mined, their price is 10.

When 10 stones are mined, their price is 53.

On a day when 53 workers are mining stones, then they mine 10 stones.

On a day when 10 workers are mining stones, then they mine 53 stones.