QAV500 = X-frame or H-frame?

For the QAV500 frame (square motor distance), would I select X-frame or H-frame in the Mission Planner to set-up the Pixhawk?

It looks like an X to me. The H is really just an X except that the motors spin in the opposite direction from a normal X.
So if the copter’s front-right motor spins counter-clockwise it should be set as X. If it spins clockwise then it should be set as H.