Say "협동" in Korean

What does "협동" mean in English?

• A.science
• B.cooperation
• C.celebration
• D.adventure

Translate to Korean: "solution"

• A.독립
• B.지식
• C.교육
• D.해결책

What does "발견" mean in English?

• A.geography
• B.imagination
• C.solution
• D.discovery