Which of the Following Statements About Plant Hormones Is False

Multiple Choice

Which of the following statements about plant hormones is false ?

A) They are organic compounds that act as highly specific chemical signals.
B) They are effective at extremely low concentrations.
C) They elicit many different responses.
D) They may stimulate a response at one concentration and inhibit that same response at a different concentration.
E) They can currently be categorized into seven major classes.