Pollination Is Considered an Important Ecosystem Service

Pollination is considered an important ecosystem service.People value pollination, and other ecosystem services, because they provide

A) essential services that people cannot provide or that would be difficult or costly to replace.
B) nonessential, but beneficial, services that simply enhance our lives.
C) frivolous, but fun, services such as recreational areas or beautiful vistas.
D) over-rated services that some people, such as environmentalists, consider important.
E) essential services that we could provide for ourselves with little trouble but prefer not to.