Some Plant Species Produce, on the Same Plant, Two Types

Some plant species produce, on the same plant, two types of flowers: ones that open and attract pollinators and ones that never open but instead self-pollinate.Which is not a reason that the two reproductive strategies would benefit the plant species?

A) Flowers that open will produce genetically diverse seeds.
B) Flowers that do not open will produce seeds genetically similar to the parent plants.
C) If pollinators do not visit the plants, the plants can still reproduce.
D) Plants do not need to spend energy to make nectar for flowers that never open.
E) Flowers that open will likely attract only pollinators specific to that plant species.