When janet feels the wind blowing on her face this is an example of
a) sensation.
b) perception.
c) transduction.
d) signal threshold.

a) sensation

Explanation:

In psychology, the term sensation refers to the process by which our senses take in information that will later be send to the brain. In other words, it's the process of sensing the world through our senses (touch, taste, sight, sound, and smell).

In this example, Janet feels the wind blowing on her face, we can see that she is experiencing the world through the sense of touch (the wind on her face), therefore this is an example of sensation.