In an Experiment,a Plant Physiologist Has Four Groups of Bananas

Multiple Choice

In an experiment,a plant physiologist has four groups of bananas of the same species.He exposes each of the four groups of bananas with the same concentration of auxins,gibberellins,abscisic acid,or ethylene.Which of these four groups of bananas ripen the fastest?

A) auxins
B) gibberellins
C) abscisic acid
D) ethylene