Which of the Following is Mismatched

Question

Which of the following is mismatched?  
A) Cytokinin-inhibits lateral root formation
B) Auxin-promotes cell enlargement
C) Gibberellin-involved in phototropism and gravitropism
D) Abscisic acid-promotes stomatal closure
E) Ethylene-promotes seasonal leaf abscission

Accepted Answer

Gibberellin is not involved in gravitropism, which is regulated by auxin, and phototropism, which is regulated by auxin and another hormone called gibberellin.