Over time, a particular plant has developed a longer stamen. which of the following is a possible advantage to having a longer stamen
a. a longer stamen could ensure that an insect brushes an anther and picks up pollen
b. a longer stamen could ensure that the flower produces more nectar.
c. a longer stamen could ensure that pollen could reach the ovary and fertilize the egg.
d. a longer stamen cold ensure that the developing flower is well protected