Question

Physical fitness involves the optimal functioning of the ______________.

a. Immune, skeletal, and circulatory systems.

b. Digestive, reproductive, and respiratory systems.

c. Circulatory, respiratory, and muscular systems.

d. Endocrine, muscular, lymphatic systems

Answer 1

Answer: C

Step-by-step explanation:

Circulatory System: Keeps heart pumping and gives oxygenated blood

Respiratory: Gives oxygen

Muscular: Helps you get fitness and exercise