What are some good answers/corrections between a1, b2, and c2?

I cut bread with a knife. It’s so tender but well done.

I used a knife in order to cut the bread : purpose clause

I submitted the recipe to win prize money.

My recipe has been submitted for the lucky winner of the prize money of “Allie’s”! He is the

man to wash dishes. : purpose clause.

Among my friends, he is the man that can wash the dishes. : relative infinitive clause,

relative clause (parameter 1).