In the american legal system, "boot camps" are usually meant for
a) felons.
b) juveniles.
c) female prisoners.
d) violent criminals.

The answer is B. In the American legal system, "boot camps" are usually meant for juveniles. Boot camps are the government action as a correctional and penal system for offenders especially juveniles. They are modeled based on military recruitment training. Boot camps are criticized due to its lethal way of traumatizing children and teens.

I believe the answer is:

Claudius's guilt

Hamlet's madnes

In the story, Claudius told the truth about his condition and revealed his guilt to King Hamlet when the play enters  Act 4 scene 3, so it's definitely not settled at the beginning of act 3. Hamlet's madness on the other hand is just settled when the play enters Act V