Why Is Quorum Sensing Advantageous to Bacteria When They Are

Multiple Choice

Why is quorum sensing advantageous to bacteria when they are forming a biofilm?

A) Larger numbers of bacteria reduce the competition between the bacteria for resources.
B) Bacteria must produce components of a biofilm. It is a waste of energy if they produce those components when there are not enough bacteria present to produce a biofilm resistant to physical forces.
C) Enough weak bacteria need to be present so that they can be killed and used as nutrients for the strong bacteria.
D) It is easier for proper bacterial mating types to contact each other and sexually reproduce when there are larger numbers of bacteria present.