Transverse wave through a medium

[clickyclicky]

Here's the question:

The transverse wave shown is traveling from left to right in a medium. The direction of the instantaneous velocity of the medium at point P is:

A. no direction since v = 0
B. to the right
C. upwards
D. at an angle upwards and to the right
E. downwards


Here's my (most likely wrong) reasoning. It's a transverse wave so the medium either moves up or down. I'd say at point P the medium is moving downwards because after point P the medium is below the axis? Can someone please explain what I'm not getting here? Thanks

 

[Stonebridge]

As the wave is moving to the right, then the peak you see in the wave which is to the left of P, is moving towards P. Very shortly, P will be at the top of that peak. (The point P cannot move to the left or right itself, only up or down)