Not 100% sure but B sounds the most likely from what I've read...
I believe the answer would be bone.
You should consume around 2 bottles of water after any physical activity
OK so basically one would be a curfew and the other depending on the age will be don't have sex unless both let's say 18 it would be always be safe and use a condom. But if that isn't something another thing enforced would be that there needs to be a neutral respect towards each other
QUATS are effective in destroying fungi and some viruses