Which is associated with divergent boundaries?
a)ocean mountain chains
b)volcanic island ares
c)folded mountains
d)horsts and grabens

Volcanic island areas is associated with divergent boundaries

B. Volcanic island areas

Explanation:

Divergent boundaries in the middle of the ocean leads to the spreading of the seafloor. As the plates of the ocean separate and move apart, they produce breaks in the sea depths. Magma ascends from the mantle and overflows out from the breaks like a long, flimsy volcano.

This magma cools and ultimately forms igneous rock. Most dynamic plate boundaries happen between plates of the ocean and exist as mid-oceanic edges. Divergent boundaries likewise structure volcanic islands.