Which Statement Best Describes the Big Hawaiian Volcanoes

Which statement best describes the big Hawaiian volcanoes?

A) They lie directly above an active subduction zone where the Pacific plate is sinking into the mantle.
B) They lie along the crest of the East Pacific Rise, a mid- ocean ridge or spreading centre.
C) They are situated in the interior of a large, Pacific plate above a mantle plume deep in the mantle.
D) They lie directly above a transform plate boundary that cuts deeply into the mantle.