17. Which description about apical dominance is CORRECT? (A) Both auxin and strigolactones repress the growth of axillary buds. (B) Auxin induces the synthesis of cytokinins to repress growth of axillary buds. (C) Auxin, cytokinins and strigolactones have the same effect on apical dominance. (D) Apical dominance enhances the growth of axillary buds.