Answer: option A - includes all of the ecosystem services, future uses, and non-use values (such as cultural, intrinsic, and aesthetic values) of an ecosystem.
Explanation:
Ecosystem is the interrelationship of organisms (plants, animals, microbes) with each other and their environment.
The TOTAL economic value of an ecosystem includes:
the presently utilized resources,
the resources to be derived in the future,
the non-use or intangible aspects (like tourism, beautification, etc)