The answer is trellis drainage (A). With trellis drainage, the tributaries join the main river at near right angles. This is typical of a V-shaped river valley where the tributaries flow down the slopes of the sides of the valley to join the main river.

Radial drainage (B) occurs off of a volcanic cone or a newly formed dome whereby the streams flow away from a centre point at the top of the cone or dome.

Dendritic drainage (C) occurs from a surface underlain by a rock of uniform hardness; the main stream flows down the initial slope and is fed by its tributaries all of which forms a pattern similar to that found in the veins of an oak leaf.

Intermittent drainage (D) occurs in an arid climate such as a desert where rainfall is insufficient to allow for the permanent flow of water. Hence, the streams in these regions are intermittent in nature and different landforms are produced.