Better senses have a positive impact on an animal 's survival.
Cats have excellent eyesight, hearing and sense of smell.
A cat's hearing has a positive impact on its survival.
What has a positive impact on a cat's survival?
Options:
(a) Cataracts
(b) glycogen
(c) Hearing
(d) Hyperthyroidism
(e) food
(f) heat
(g) hormones
(h) Curiosity