The verb in the sentence is, to follow (his father's footsteps). This verb is used as an infinitive. An infinitive is a word in the verb form that functions as a noun, adjective or adverb. Infinitives are generally introduced by the word "to".
C as it has a better view on the situation
Answer:
"If I were you, Joshua, I would not take my warning lightly," Maisy said.
and for the first one
Jayme replied, “I really wish you hadn’t done that.”
“I hope you realize what you’ve started here,” warned Jayme.
both of them would work