Many people report having a phobia for snakes even though they have never been exposed to a snake. this fear is an example of
a. to an unfamiliar stimuli
b. misinterpretation of stimuli
c. classical conditioning
d. preparedness

The correct answer is option d. "preparedness". Preparedness theory states that human learnt to fear objects and animals that represented a threat to human survival in ancient times. The phobia for snakes that people suffers even though they never been exposed to them, is an example of preparedness disposition to fear a potentially dangerous animal.

answer; a group made up of people from difference cultures;

'migration rates' are measurements of how many people entering or leaving a country. and if more people are leaving, this could cause a population to change.