The type of plate boundary known to create the largest earthquakes is a) convergent.
Convergent boundaries occur where two tectonic plates collide. This collision can cause one plate to be forced beneath the other in a process known as subduction. The immense pressure and friction at these boundaries can lead to the buildup of stress, which is eventually released in the form of powerful earthquakes. These earthquakes are often the most destructive due to their high magnitude and the potential for triggering tsunamis.
In contrast, transform boundaries (b) involve plates sliding past each other, which can also cause earthquakes but typically of lower magnitude. Divergent boundaries (c) occur where plates move apart, leading to volcanic activity and smaller earthquakes. Transverse (d) and subvergent (e) are not recognized types of plate boundaries in geology.