The correct option is A Edward O. Wilson
Biodiversity is defined as the variety and variability observed at all levels of biological organisation.
Sociobiologist Edward Wilson was the first person to popularise the term ‘biodiversity’ to explain the combined diversity at all the levels of biological organisation. Thus, he is known as the father of biodiversity.
Ernst Haeckel was a German biologist and he coined the term ecology.
Joel A. Allen is known for the famous Allen’s rule that states that organisms living in colder regions have shorter extremities to reduce heat loss.
Gause is famous for his principle of competitive exclusion. The principle states that when two species residing in the same habitat have the same requirements for survival, they compete and fight for the resources, until the superior species eliminates the inferior one.