Which of the following is TRUE? A. You should wear a reflective vest if you exercise outside at night
B. You can swim alone if you are a really good swimmer
C. You should avoid exercising with a friend because he may slow you down D. You only need to wear protective gear during competitions
BRAINLIEST??

A

Explanation:

the rest are false

put a penis in a vagina

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.