Often EMRs are:

Which of the following statements regarding power surges is MOST accurate?

A. They rarely create fire hazards. B. They enter buildings through plumbing. C. They are rarely preventable by surge protectors. D. They may melt internal components of electronics.

Why would stroke volume increase during exercise?   Parasympathetic discharge increases cardiac contractilityVasodilation of working muscles increases venous return to the heartVasoconstriction of peripheral venous blood reservoirs increases venous return 

A. I and III only B. I only C. II and III only D. I , II, and III