The statement “Increased levels of endorphins are released into the brain, boosting a person's mood” best explains how the regular form of exercise is beneficial to the brain.
Generally, when individuals exercise regularly, their bodies tend to release chemicals named endorphins. Some of the significant characteristics of endorphins are listed as follows:
Thus, we can conclude that regular exercise can boost a person’s mood by increasing the endorphin levels that are released into the brain. Hence, option A is the correct answer.
Learn more about endorphins here:
https://brainly.com/question/17691699