Which of the Following Statements About Plant Tropisms Is True

Which of the following statements about plant tropisms is true?

A) An imbalance in gibberellin concentration causes curvature.
B) Roots grow toward the light.
C) One side of the root or shoot grows more rapidly than the other in response to differences in the amount of auxin present.
D) DNA is the light receptor or gravity receptor.
E) Auxin is the light receptor or gravity receptor.