Four-year-old Scott fell down the stairs at his grandmother’s house. Although he was not badly hurt, he was very frightened. Now, whenever his parents mention visiting his grandmother’s house, he feels anxious and fearful. In classical conditioning terms, what are the conditioned stimulus (CS) and the unconditioned stimulus (UCS) in the scenario, respectively?
A. Grandmothers House; Fear
B. Grandmother's House; Falling
C. Fear; Grandmothers house
D. Falling; Anxiety
E. Anxiety; Fear