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。
The legal age for drinking alcohol in the United States is 21． 1 Here we look at alcohol policies at American colleges and universities．
2 But many schools have been moving to strengthen their rules．
The United States has more than 17 million students in higher education．Each year, 1,700 of them aged 18 to 24 die from alcohol-related road accidents and other injuries．
6000,000 more are injured while under the influence of alcohol, and almost 700,000 are attacked by another student who has been drinking．
One behavior that college officials are trying to prevent is binge（狂欢） drinking, having 4 or 5 drinks or more in a short period of time．Some researchers have found that students who think binge drinking is normal often overestimate（高估）how much other students really drink. 3
At the University of Oklahoma, new policies went into effect after a 19-year-old student died．He had been drinking heavily at a party．
Now alcohol is not allowed in all fraternity（兄弟会） and sorority （女生联谊会） houses and university housing．Student organizations can serve alcohol at events but only on Friday and Saturday nights, and they must provide transportation to and from off-campus parties． 4
The policies govern behavior on campus and off． With a first violation（违反）, students pay 75 dollars and their parents are told． 5 For a second “strike”, they have to pay 150 dollars．A third strike means they will be removed from school for at least one term．
A．Underage drinking is a crime but also a common part of college social life．
B．People under 21 will not be allowed to drink．
C．These policies differ from school to school．
D．A person can die of alcohol poisoning．
E．When they are drinking, they always forget it．
F．Other new requirements include an alcohol education program that first-year students take online．
G．They must also take an alcohol education class．