单选题 Ms Beecher decided to expand her Chapter-A-Day service because ______.

A、 over 3,000 libraries had joined
B、 many other people could benefit
C、 eight book clubs supported her
D、 free email service was available

【正确答案】 B

【答案解析】从第二段倒数第二句话中可以找出正确答案：Realizing that many other people could benefit，she decided to take the idea even further and start an email "chapter-a-day" book club to help others ease their way back into daily reading．