Strong, Sturdy, Robust

C. POWERFUL

Happy, Joyful, Elated

D. ECSTATIC

Calm, Peaceful, Tranquil

B. SERENE

Choose the word that is similar to the group: Brave, Courageous, Fearless.

B. VALIANT

Choose a word similar to the group: Strong, Sturdy, Robust.

C. POWERFUL