Final answer:
Rift valleys are not associated with convergent plate boundaries but with divergent boundaries, where tectonic plates pull apart and new crust is formed.
Step-by-step explanation:
The following are not associated with convergent plate boundaries is B. Rift valleys. Convergent plate boundaries are typically associated with phenomena such as deep-focus earthquakes, island arcs (island building), and deep-sea trenches. These features result from the subduction process when an oceanic plate descends into the mantle beneath an overriding plate, leading to a range of earthquake depths from shallow to deep and often volcanic activity.
Rift valleys, on the other hand, are associated with divergent plate boundaries, where plates pull apart from each other, such as the Mid-Atlantic Ridge. This process is driven by upwelling currents in the mantle, where molten rock rises to fill up the space between separating plates, forming new oceanic crust primarily made of basaltic lava.