In Which of the Following Ways Do Plant Hormones Differ

Multiple Choice

In which of the following ways do plant hormones differ from hormones in animals?

A) Plant hormones frequently travel through the air as a gas.
B) Animal hormones are only local regulators.
C) Plant hormones commonly travel through the soil from one plant to another.
D) Animal hormones typically travel from the hormone producing cell to an adjacent responding cell through gap junctions.