Question

which type of zone is located at a deep - ocean trench? convergent divergent subduction transform

Explanation:

Deep - ocean trenches form at subduction zones where one tectonic plate is forced beneath another. Convergent boundaries can have subduction zones but subduction is the more specific term for the zone at the trench. Divergent zones create mid - ocean ridges and transform zones are for lateral movement of plates.

Answer:

C. subduction