Final answer:
Convergent boundaries are most likely to result in a subduction zone, where one tectonic plate is forced beneath another.
Step-by-step explanation:
The correct answer is b. convergent. Convergent boundaries occur when two tectonic plates collide. In this type of boundary, one plate is forced beneath the other, resulting in a subduction zone. This is commonly observed in areas where an oceanic plate is subducting beneath a continental plate, such as the Pacific Ring of Fire.
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