Answer:
Option C, Transform boundary
Explanation:
In transform boundaries, two tectonic plates slides against each other. Hence unlike a convergent or divergent boundary , there is no sandwiching of plates or creation of new land crust between the two sliding tectonic plates. The region between the two plates is called transformation fault and the two plates instead of moving against each other in opposite direction move away from the fault in opposite direction there by widening the fault in between.
Hence, option C is correct.
