A Plant Physiologist Is Studying the Cause of Phototropism,which Has

A plant physiologist is studying the cause of phototropism,which has what cause?

A) Auxins move to the light side of the plant causing the cells to shrink.
B) Gibberellins move to the light side of the plant causing the cells to shrink.
C) Cytokinins move to the shady side of the plant and cause the cells to elongate.
D) Abscisic acid moves to the shady side of the plant and cause the cells to elongate.
E) Auxins move to the shady side of the plant and cause the cells to elongatE.