Which sentence is punctuated correctly?

Question

A: My plant society requires a three-fifths majority to vote in a new president.

B: My plant society requires a three—fifths majority to vote in a new president.

C: My plant society requires a three fifths majority to vote in a new president.

Answer 1

The sentence punctuated correctly is option A: My plant society requires a three-fifths majority to vote in a new president.