69.The best terms for a fish whose body temperature varied between 4oC during the day when it is in deep, cold ocean waters and 26oC during the night when it comes to the surface to feed would be (A) endothermic and homeothermic; (B) endothermic and heterothermic; (C) ectothermic and homeothermic; (D) ectothermic and heterothermic.