A scientist question should be A. vague
B. non-repeating
C. creative
D. non-testable

Creative

Explanation:

A scientific question is a scientific inquiry which is framed on the basis of observation and limited evidences obtained from the natural processes. A particular scientific question should be testable, repeated so as to determine the accurate and reliable answer obtained after experimental procedures.

It should be creative means it should be original, unique and must frame the curiosity of the scientist.

Cats and other carnivores (meat-eaters) often use a combination of vision, hearing, and smell. Some other predators have special senses for finding prey in the dark. Nocturnal bats find their food by using sound, while some snakes hunt by sensing body warmth.