A bite of wisdom

Which of these words describes something calm and peaceful?

Plaintiff

Proud

Placid

Plain

Come back tomorrow
for more questions!

placid

1. (of a person or animal) not easily upset or excited

"this horse has a placid nature"

Choice "A": Plaintiff % of users selected this choice.
Choice "B": Proud % of users selected this choice.
Choice "C": Placid % of users selected this choice.
Choice "D": Plain % of users selected this choice.