Answer:
The beginnings of the sentences need to be varied.
Step-by-step explanation:
As per the question, the most appropriate way to revise the given paragraph would be to 'vary the beginnings of the sentences' as the use of similar subject/noun 'The novel' to begin the sentences offers a monotonous tone that is affecting the overall coherence and meaning of the paragraph. To rectify this error, the sentences could be begun with different parts of speech which would not only help provide variety in the paragraph and break the monotony but also provide a smooth flow of ideas and engages the readers' interest and attention. Thus, the 'beginnings need to be varied.'