Answer:
b. The bumblebees have undergone niche partitioning due to competition.
Step-by-step explanation:
The principle and theory of niche partitioning is based on our interpretation of biodiversity. The mechanism by which natural selection forces competing organisms into separate resource use patterns, behaviors, trends, or niches is attributed to niche partitioning. This distinction in the ecological niche helps to decreases competition and encourages species coexistence.
In the given information:
The ability of the bumblebees to be able to give preference over the choice of flowers that relates to the length of their proboscis, the ability of the species of the same proboscis length to think of occupying different areas, and the coexistence of species that possess different proboscis length to accommodate each other in the same environment tends to solve a common problem is known as Niche Partitioning and the ultimate goal is to reduce competition.