Say "사십" in Korean

What does "사십" mean in English?

• A.fifty
• B.zero
• C.forty
• D.ninety

What does "둘" mean in English?

• A.eighty
• B.two
• C.eight
• D.fourteen

Translate to Korean: "fifty"

• A.십오
• B.오십
• C.아홉
• D.둘