Calculate the volume in microliters of a 10 mM stock ABA (Abscisic Acid) that you will need to add to the GA (Gibberellic Acid) treatment.

a. The correct answer depends on the specific experimental conditions.
b. The volume needed cannot be determined without additional information.
c. Use the formula: Volume = Concentration × Total Volume.
d. Consult the experimental protocol for the recommended volume.