"To write a novel", is the subject in the infinitive phrase.
His ultimate goal is to write a novel. So, "To write a novel" functions as a noun in the sentence. Hence, the answer is A. Noun.
The point of view is different. You have consider every character. It’s unlikely that you mass descriptions (other than narrators), because you have keep readers interested by making it concise but eventful, while with books you have more flexibility and room to breathe.
Homophones........................................