A maintenance-free battery has failed the capacity test. Technician A says if the voltage recovers to 12.45 volts, the battery is still good. Technician B says if the voltage level does not return to 12.4 volts, recharge the battery and repeat the capacity test. Who is correct?
(a) A only.
(b) B only.
(c) Both A and B.
(d) Neither A nor B.