Answer:
b.sensation; perception
Explanation:
Sensation refers to how the body senses or responds to environmental changes. This is made possible by the sensory cells of the sense organs such as the eye, nose , ear, skin etc.
Perception deals with how the body translates these actions or changes.
In the example, a box was dropped on his toe and the body responded to it by an immediate sharp sensation of pain.
The throbbing of pain which lasted for the next few days was transmitted by how the body perceived the action . The pain lasting for days mean the body perceived it to be quite serious.