Which choice most logically completes the text?

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The Mammillaria cactus M. phitauiana occurs naturally only in the state of Baja California Sur in Mexico, and the smallness of its range makes it especially vulnerable to extinction. The traditional single-species approach to conservation emphasizes the need to focus on individual species most at risk, like M. phitauiana, but recently, conservationists have argued that an ecosystem-based approach that incorporates the many interactions between the climate, terrain, and various species of a given geographical area may lead to better outcomes for all the species in a given location. If this is correct, the single-species approach to the conservation of M. phitauiana could thus

fail to consider the ways in which the survival of M. phitauiana may be influenced by changes in the populations of other species that inhabit Baja California Sur.

allow conservationists to better consider how climatic changes affecting Baja California Sur may reduce the number of species competing with M. phitauiana.

erroneously shift the focus of conservation efforts away from M. phitauiana itself.

lead to a better understanding of how the distribution of Mammillaria species throughout Mexico has affected their survival.