Answer:
Option C
Step-by-step explanation:
In the graph attached with the question there are four segments A, B, C, D.
(1) Segment A ⇒ shows a positive growth so function is changing with the value of x.
(2) Segment B ⇒ shows a growth so function is changing with every value of x.
(3) Segment C ⇒ This segment is constant representing segment c for each value of x so function is constant.
(4) Segment D ⇒ Value of y increasing with the change in x-values.
Therefore, function representing segment D is not constant.
Option C is the answer.