The unconditioned stimulus is the hospital.
In classical conditioning, the unconditioned stimulus is one that unconditionally, naturally, and automatically triggers a response. So in this case the hospital triggers the response of anxiety and nausea for Ron.
S- specificity
P- progression
O- overload
R- reversibility
T- tedium
Out of all of these, I'd say that C would be the answer.
An impulsive person is a type of decision maker who tends to choose the first available option in haste.
