In this question the dot rotates around the inside of the pentagon. The direction of the arrow from its previous position indicates whether the rotation is clockwise or anticlockwise. The number of arrowheads on the arrow of its previous position indicates the number of fifths of a complete turn by which it should rotate.
For the next diagram in the sequence, therefore, it should rotate two fifths of a complete turn in a clockwise sense.
The correct answer, therefore, is A.