The diagram above represents a chain of volcanic islands that are formed in a similar way as the Hawaiian Islands. What forms an island chain such as this?

a)The islands form slowly as the oceanic plate moves over a hotspot in the mantle.

b)The islands form from the movement of the oceanic plate underneath a land plate.

c)The islands form as the oceanic plate moves too quickly away from another ocean plate.

d)The islands form as a hotspot in the mantle moves underneath the oceanic plate.