Why Are Human Body Tissues Such as Muscles, Nerves, and Blood

Why are human body tissues such as muscles, nerves, and blood good conductors of electric current?

A) These tissues have a high resistance to current flow, which allows good conduction of current.
B) These tissues have a high water content and presence of ions.
C) These tissues have a high collagen content and fat molecules.
D) Their location near the surface of the skin makes these tissues easily depolarized.