Which term can mean both an obstacle and a strong defense or protection?

• A. Blockade
• B. Caucus
• C. Chloeric
• D. Bulwark

Answer: (D)

This question tests understanding of a word that carries both the idea of guarding and blocking something from getting through. A bulwark is a sturdy defensive wall or barrier that protects against attack, like a shield or fortification. Because of that protective function, it can also be understood as an obstacle that stands in the way, preventing intrusion or progress. So it neatly covers both senses in one term.

The other options don’t fit as well. A blockade is about preventing passage, which is more about blocking than providing protection. The remaining two are unrelated in meaning: one refers to a political meeting, and the other to a temperament.