What Was One Event That Prompted the Obama Administration's National

What was one event that prompted the Obama administration's national sexual assault campaign for colleges and K-12 schools?

A) The rape and murder of a young woman at Stafford University
B) The gang rape of a group of women at a frat house at the University of Iowa
C) The national report indicating that rape at universities across the nation had increased by 30% in 10 years
D) A fraternity pledging event at Yale University that required a "pro-rape" chant