다음 글을 읽고 물음에 답하시오.
There is a big mall (ⓐ) the Internet. You can buy anything ①there. You can buy books, music CDs, gifts, cars, and even houses.
Ingyu wanted to buy a book. He went to several bookstores near his house but could not find ②it. Then he read about Internet bookstores (ⓑ) the newspaper. He tried ③one and found the book ④there. He ordered ⑤it right away.
1. 윗 글의 밑줄 친 부분과 그것이 가리키는 내용을 잘 연결한 것은?