a. can have both positive and negative
The answer to your question is A or C, because from doing weight resistance training you would gain more muscle.
Suicidal thoughts and/or actions consist of you thinking about hurting yourself, and eventually killing yourself. When you have suicidal thoughts, you might cut yourself, and feel down, but remember, if you are feeling suicidal, talk with an adult you trust, or call the suicidal hot line.
~Hope I helped!~
Your answer is your third choice, critical injury
Body composition is used to describe the percentages of bone, water, fat, and muscle in human bodies.