Question

which of the following is a strength training option?

a. weight machines

b. resistance bands

c. free weights

d. all of the above

Explanation:

Strength training involves using resistance to build muscle strength. Weight machines (A) provide controlled resistance for strength training. Resistance bands (B) offer variable resistance to work muscles. Free weights (C) like dumbbells or barbells are classic strength - training tools. So all these options (A, B, C) are strength - training options, meaning option D is correct.

Answer:

D. All of the above