Sunlight is the answer hope it helps
Answer:
Conditioned stimulus
Explanation:
In the classical conditioned, these terms such as condition stimulus, UCS, CS, NS, etc are being used to modify the behavior of a person, animal, etc. The conditioned stimulus is neutral before as a conditioned stimulus. Ivan Pavlov was the first psychologist who has been used classical conditioning in which a person used CS, UCS, UCR, and CR.
Thus here in the above statement, the person eats a hamburger. Before used it, it was a neutral stimulus but after using it, it becomes a conditioned stimulus.
Taking into account that statistics involves a process of collecting, presenting, analysing and interpreting data numerically, limitations may affect this process. Statistics limitations may be concerned with offering information that only applies to the average population. Besides, statistical limitations appear when results are influenced by inaccurate assumptions as well as when results are reported by invalid sources. Consequently, option "D" is not considered a limitation since statistics often assists in advocating for positive change.