What Is One Method Researchers Have Used to Determine What

What is one method researchers have used to determine what role the experiential system and automatic behaviors might play in a given process?

A) ask people explicitly how they feel about the process at a deep level
B) study the process while the cognitive system is "blocked," for example by asking participants to simultaneously memorize a long list of numbers
C) giving participants arousal-inducing drugs without telling them that they have done so, and then observing how they react to the process
D) ask participants to look at visual illusions and arrays, such as figure-and-ground images, after they have completed the process