The human body relies heavily on electrical charges. Lightning-like pulses of energy fly through the brain and nerves and most biological processes depend on electrical ions traveling across the membranes of each cell in our body .These electrical signals are possible,in part, because of an imbalance in electrical charges that * cexists on either side of a cellular membrane. Until recently , researchers believed the membrane was an essential component to creating this imbalance.But that thought was turned on its head when researchers at Stanfoxd University discovered that similar imbalanced electrical charges can exist between microdroplets of water and air. According the text , what is true about electrical ions? A) They can travel across membranes at an extremely high speed. B) Their charges become imbalanced outside of a living cell. C) They require a membrane to develop different charges. D) They are unable to send signals without a membrane present.