Gabriel is at a stage where his body is changing physically; he is growing facial hair and building muscle. He is also just starting to make sperm.What is most likely Gabriel’s age?

These changes are signs of puberty. Boys commonly begin puberty around age 12, when the body starts producing sperm and may begin developing facial hair and more muscle. Age 5 is too young, while 17 and 21 are generally later than the start of these changes, so age 12 is the most likely.

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