Which of the Following Is Least Likely to Be an Example

question 80

Multiple Choice

Which of the following is least likely to be an example of classical conditioning?

• A)A child hears a police siren for the first time and cries.
• B)A whiff of perfume on a crowded subway triggers a memory of a prior love.
• C)A dog sits upon sight or smell of a treat.
• D)A former soldier cringes at the sound of an airplane overhead.

---

Definitions:

Embolus

A blood clot, air bubble, or other substance that is carried in the bloodstream and can block blood vessels.

Immune Response

The body's defensive reaction to foreign substances, including microbes and pathogens, involving recognition and response.

Embolus

A blood clot, air bubble, piece of fatty deposit, or other object that has been carried in the bloodstream to lodge in a vessel and cause an embolism.

Thrombus

A blood clot that forms within a blood vessel or the heart and may cause vascular obstruction.