Plant hormonal control differs from animal hormonal control in ...

[xclash]

Plant hormonal control differs from animal hormonal control in that
A) there are no separate hormone-producing organs in plants as there are in animals.
B) all production of hormones is local in plants with little long-distance transport.
C) plants do not exhibit feedback mechanisms like animals.
D) only animal hormone concentrations are developmentally regulated.
E) only animal hormones may have either external or internal receptors.

[clippers!]

I chose A and got the answer, hope that helps.