Run the cutting board and knife through the dishwasher.
Agoraphobia is the fear of being in open public spaces
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.
D. The lungs are how oxygen is exchanged in and carbon dioxide is taken out. Carbon dioxide is then put back into the air around us. A. does not work because that is an opinion. B. is also an opinion. C. does not deal with the question at all.
Reach out to peers to help treat the injury.