This is a pretty tough one- C looks very attractive.
C tells us that women probably drink more coffee and tea than men do. The support for this would be that woman are at higher risk- however, there are other possible causes of the fact that women are at higher risk- maybe it has to do with hormones or genetics. I dont think we can say for sure that it is because women drink more caffeinated beverages than men do.
However, I think we can be confident that women, who are already higher risk, should avoid a substance that would further increase their risk- so D is strongly supported.