6. the words disclosure and concealment are
a. homonyms.
b. antonyms.
c. synonyms.
d. equivalents.

B is the correct answer, they are 'antonyms' because they mean completely the opposite things: 'disclosure' means revealing information, whereas 'concealment' means concealing it. 

The points for are used for asking questions, so for example let’s say you have a question that’s really urgent the point scale gives you up to 100 points.. not saying you always need to give 100 points but that’s what they are used for. also answering others questions will give you points.