Answer:
Conditioned Stimulus.
Step-by-step explanation:
Classical conditioning may be defined as the process of learning in which the neutral stimulus when mixed with the effective stimulus generate the strong biological response.
The conditioned stimulus is the neutral stimulus that do not play any important role in the learning of the classical conditioning. Here, the lakeshore property acts as the conditioned stimulus because here this stimulus is neutral.
Thus, the correct answer is conditioned stimulus.