Which event is the most common at a transform plate boundary? a. formation of a mountain chain b. a mid-ocean ridge c. a hot spot volcano d. frequent earthquakes

D: Frequent earthquakes

I hope this helps :) :)

Option (D)

Explanation:

In a transform plate boundary, two plates slide past each other as a result of which it leads to neither the destruction of the crust nor the creation of new crust. The conservation of plates takes place. Due to this type of plate boundary, there occurs frequent earthquakes of shallow focus, that are very destructive in nature.

For example, the San Andreas fault that formed as the North American plate shares a transform plate boundary with the Pacific plate.

Thus, the correct answer is option (D).