根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
May the first is an important date in the college admission process in the United States．This is the last day for high school seniors to accept or reject offers of admission in the fall．But according to a recent report, there is a great change. Acceptance rates at the top colleges this year were lower than ever. 71
These days, college applicants are applying to more colleges because online and common applications make the process easier. 72 On the other hand, deciding students for top colleges to accept can be difficult because it takes much time. Students may not like being put on waiting lists. Also, common colleges work more to get the students they accept to accept them. Some colleges hold visiting days that offer a chance to attend classes and stay overnight. Some universities send
