Two things change from each cell to the next along a row: the direction of the kite and its colour. Which kite completes the grid?

Along each row the kite turns $45^{\circ }$ anticlockwise and its colour moves on one step in the cycle orange $\to$ blue $\to$ yellow $\to$ orange (top row: orange pointing up, blue pointing up-left, yellow pointing left). In the bottom row the orange kite points down-right, so next comes a blue kite pointing right: (b). (a) turns clockwise instead, (c) has the wrong colour and (d) has not moved the colour on.