Please help in naming the Unconditioned Stimulus (US), Unconditioned Response (UR), Conditioned Stimulus (CS), & the Conditioned Response (CR).
1. A passenger on a plane was feeling anxious about an important job interview the next morning and, as a result, he was uneasy and nervous throughout the flight. Weeks later, he was contemplating a holiday trip. Though he hadn't previously been afraid to fly, he found himself suddenly nervous about flying and decided to cancel