Knights often lost their lives.
I'm pretty sure the answer is D. Grammar is not important at this phase. I hope this helps! And i'm sorry if i'm wrong. :)
A cliche is a well-worn phrase used in conversation or in writing that has lost it's meaning. It's been overused. For example, "She was frightened to death to pet the pitbull..." "frightened to death" is the cliche.
Answer - Gerund, Hope this helps
