Answer:
Behavior can cause a lack of self-confidence by making people avoid situations where they would gain important knowledge or experience that often help confidence grow.
Explanation:
I would say the 1st one is the only one correct. The 2nd one should be who, the 3rd one should more and likely be whom, and the last one should probably be who. I don't know if I'm 100% though. I hope I helped.
Answer:
A supporting text in an informational text
Explanation:
examines something closely:)