In the Past Three Psychology Labs, Liliya Has Been Attempting

Multiple Choice

In the past three psychology labs, Liliya has been attempting to classically condition a lab rat. Her strategy has been to present the US and CS simultaneously. Which of the following should she do to strengthen the conditioned response of the rat?

A) Make less frequent pairings of CS and US.
B) Present the CS first and have it remain present during presentation of US.
C) Present the US prior to CS.
D) Present the CS first and withdraw it before introducing the US.
E) Decrease the intensity of the US.