The answer is b to this .
Answer:
A form of high intensity interval training, CrossFit is a strength and conditioning workout that is made up of functional movement performed at a high intensity level.
Explanation:
An individual's self-esteem can be affected by genetics as well as environmental factors, and poor self-esteem often begins in childhood. A person who experiences an abusive childhood or who didn't get enough approval from authority figures, feels his or her self-worth was based on achievements or feels excluded will often have poor self-esteem.
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