Which behavior is one of the warning signs of self harm? decreasing the use of alcohol or drugs
giving away a collection of prized belongings
having trouble sleeping
experiencing a lack of mental concentration

It could actually be three I know because I’ve done it and after that I didn’t want to do schoolwork I couldn’t concentrate , and I would stay up sad and giving things

away because i though I wouldn’t be needing them soon

so the question should be which one isn’t a sign

Which would be A

Explanation:

treatments and vaccines : )