What are the most difficult IQ questions?

To improve your understanding of an informational text, the question you should ask yourself as you read is: do i agree with what the author says in this text? who assigned me to read this text? what details in the text are unclear to me? what other texts has this author written?

Coming to school each day, having the necessary materials, and to do homework students to be successful in school. choose the answer that is the most effective substitute for the underlined part of the sentence. if no substitute is necessary, choose ‘leave as is.’ a) leave as is. b) coming to school each day, have the necessary materials, and do homework c) come to school each day, having the necessary materials, and to do homework d) coming to school each day, having the necessary materials, and doing homework

Which statement best describes the intended aesthetic impact of this excerpt?