Question

where do most volcanoes tend to occur?
along plate boundaries
at random locations across earth
in the middle of the tectonic plates

Explanation:

Volcanoes are formed due to the movement of tectonic plates. At plate boundaries, magma can rise to the surface more easily. For example, at convergent boundaries, one plate is forced under another, creating conditions for magma generation. At divergent boundaries, magma wells up to fill the gap as plates move apart. In the middle of tectonic plates (intra - plate), there is less tectonic activity to facilitate magma movement. Volcanoes do not occur randomly as there are geological processes (related to plate tectonics) that control their formation.

Answer:

along plate boundaries