In the pre-industrial system, a boy who wanted to learn a trade:
a. became an apprentice to a master craftsman.
b. was trained in an industrial school.
c. would have to teach himself.
d. would learn from an older family member.

To work on muscular strength, you should use a heavier weights and decrease repetitions b heavier weights and increase repetitions c lighter weights and decrease repetitions d lighter weights and increase repetitions its for fitness its for fitness