You missed class the day classical conditioning was discussed, so you borrow your friend’s notes. as you are reading the notes you see that the neutral stimulus was the bell, the ucs was food, and the ucr was salivation. as you look further in the notes, you cannot read what is written about the cs, since your friend was running out of ink as she took notes. given what you can read, you reason that the cs is which of the following?

Bell- since the neutral stimulus becomes the CS                      

Explanation:

Conditioned stimulus: The term "conditioned stimulus" is a part of the classical conditioning experiment, which was proposed by Ivan Pavlov.

In classical conditioning, the conditioned stimulus is defined as the formerly neutral stimulus after being associated or connected with an unconditioned stimulus, it triggers a conditioned response. The term conditioned stimulus is also referred to as CS.

In the question above, the CS is Bell- since the neutral stimulus becomes the CS.