Which of the following chemicals does your body generate during a regular exercise?

a.) sodium chloride
b.) adrenaline
c.) endorphins
d.) estrogen

C.) Endorphins.

Endorphins are among the brain chemicals known as neurotransmitters, which function to transmit electrical signals within the nervous system. When you exercise, your body releases chemicals called endorphins. These endorphins interact with the receptors in your brain that reduce your perception of pain. Endorphins also trigger a positive feeling in the body, similar to that of morphine.

The correct answer is C. Endorphins.

When you exercise, your body releases chemicals called endorphins. These endorphins interact with the receptors in your brain that reduce your perception of pain. Endorphins also trigger a positive feeling in the body, similar to that of morphine.

- WebMD

i think she would gain 18 grams