The slope field to a differential equation is shown below. Which of the following differential equations could be a solution to that differential equation?

Question

anonymous · Answer

y = 2 + sin x
		
y = 5 - sin x
		
y = 3 + cos x
		
y = 1 - sin x

anonymous · Answer

I have graphed all of these.  I am not sure what to do because none of them match this picture

anonymous · Answer

Am I supposed to find the derivative of each of these and then graph it?

anonymous · Answer

I think that it is y=3+cos(x) due to the way that it curves