Question

which best describes a newborns sense of smell?
highly developed
crude but effective
exists but is not very useful
nonexistent

Explanation:

Newborns can distinguish between different odors. For example, they show different reactions to pleasant (like their mother's breast milk smell) and unpleasant odors. Their olfactory system is well - functioning at birth, indicating a highly developed sense of smell.

Answer:

Highly developed