What Process Is Creating a Series of Rift Features Along

Multiple Choice

What process is creating a series of rift features along the eastern flank of the African continent?

A) Crustal plates that underlie the African continent are spreading apart.
B) The Somali Plate is colliding with the African Plate.
C) Subduction is occurring as the Somali Plate dives under the Eurasian Plate.
D) Small amounts of molten rock have surfaced and accumulated.