Read the passage. Enrique raced down the cracked sidewalk as fast as he could. The hot sun was beating down on him mercilessly. Streams of sweat trickled down his face, and his drenched shirt clung to his chest and back, but he didn’t care. The school day had gone by very slowly, and now he was determined to get home. In his right hand, he firmly held on to his rolled-up certificate. For three long months, he had faithfully gone to the library every three days to check out new books to read. In the evenings, he and his mom had curled up on the couch and read to each other. For every book they completed, the librarian, Mrs. Sato, had put a stamp in one of the squares of his reading chart. Today, she had filled in the very last square. She had also presented him with a certificate of completion. His name was at the top, beautifully written in red cursive. “You did it, Enrique,” Mrs. Sato had said, “and way before any of your classmates. Congratulations!” Enrique couldn’t wait to see his mom’s face when he showed her the paper. He knew she would be proud. He also knew she would be eager to get started on the new book he carried in his other hand.

Why does the writer include the sentence “He also knew she would be eager to get started on the new book he carried in his other hand” in the passage?

to show that Enrique prefers reading books to watching TV
to show that parents need to read with their children
to show that Enrique’s mom likes reading books with him
to show that Enrique would not have read the books without his mom