Help with non verbal reasoning question.

[Lolalovesroses]

Please can somebody explain this to me? Which key belongs to the group on the left?

B as all others face in the opposite direction to all those in the group on the left (if vertical with oval at bottom).

Thank you! It is B. Right, I’m off to explain it to the rest of the family.

I agree with @CrowMate this is rotation and position

Thanks to both of you!