Circle the word that correctly completes each sentence as it relates to a battery (voltaic cell). a. The positive electrode is the (cathode anode b. The cathode / anode) is the site of the oxidation half-reaction. c. Electrons flow out of the cathode / anode) and into the (cathode 1 anode). d. The metal piece that is used for the cathode anode) is the reducing agent. g