Over the years, he has also received several shocks from handling the frayed cord on his old toaster and now feels slightly uncomfortable while handling it. which of the following would most likely account for the difference in the level of fear elicited in these two situations?
a. biological preparedness
b. incubation
c. temperament
d. us revaluation

Option C

Explanation:

Temperament is a characteristic individual difference in emotions, reactivity etc. it develops over time and majorly on experiences.

"Over the years" in the above statement explains what he has been going through and that has developed in him some kind of reaction when handling his toaster. his temperament has changed towards his toaster. he was not afraid of it but due to the fact that over the years he was experiencing g shock is what has changed his perception of using his toaster. we can say his temperament has changed from when he does uses it without fear and now with fear.

the answer is b, encourage free trade