Antarctic Fur Seals Live in Cold Water, Thermoregulate, and Maintain

Antarctic fur seals live in cold water, thermoregulate, and maintain elevated core body temperatures. Manatees, another marine mammal, live in warm water, thermoregulate, and maintain elevated core body temperatures. Based on general principles, one would predict that for Antarctic fur seals, the effect of temperature on enzyme-substrate activity would be similar to that of _______-water fish, and for manatees it would be similar to that of _______-water fish.

A) stenothermal cold; stenothermal warm
B) eurythermal cold; eurythermal warm
C) stenothermal cold; eurythermal warm
D) stenothermal warm; stenothermal warm