ANSWER
C. (0,4)
Step-by-step explanation
The given graph has equation:

The y-intercept is where the graph touches the y-axis.
At this point the value of x is zero.
We substitute x=0 into the equation to obtain:

Recall that any non-zero number exponent zero is 1.
This implies that,

Hence the y-intercept is (0,4)
The correct answer is C.