Answer:
C. II and III only is correct.
Step-by-step explanation:
We are given the graphs of the functions and are required to find the sinusoidal graph.
According to the options, we see that,
Graph I can never be the graph of a sine function as it is not repeating.
Graph II and III are periodic and also can be obtained by applying some translations to the parent function [tex]f(x)=\sin x[/tex]
Hence, we get that,
Graph II and III represents sinusoidal functions.
Thus, option C i.e. II and III only is correct.
