Which One of the Following is Not a Major Plant

Question

Which one of the following is not a major plant hormone?
A)auxins
B)brassinosteroids
C)ethylene
D)cytokinins
E)ethanol

Accepted Answer

Ethanol is not a major plant hormone. The other options, auxins, brassinosteroids, ethylene, and cytokinins, are all important plant hormones involved in various physiological processes such as growth, development, and response to environmental cues.