Another note against C is that while very few students will die (~12 at a 40,000 student campus if they all get it and it has an IFR of 0.03% for people 18-25,

Another note against C is that while very few students will die (~12 at a 40,000 student campus if they all get it and it has an IFR of 0.03% for people 18-25, ~2 if the IFR is closer to 0.01% and half the students get it - either way comparable to the normal number of student deaths. The chance that a 20 year old American dies in the next year is around 0.1%, after all), administrators/professors are older and thus at greatly increased risk.