Numerous Reasons Have Been Proposed for Maintaining the Natural Biodiversity

Numerous reasons have been proposed for maintaining the natural biodiversity of the Earth, but not all can be judged as scientifically valid. For example, science lack the ability to evaluate

A) the relative value of different ecosystem services.
B) the ethical claims that all living things are entitled to live an unperturbed life.
C) the significance of removing one or more species from an ecosystem.
D) the impact of using antibiotics and vaccines to eradicate diseases caused by microorganisms.