Hi, am gonna make a ppt in social studies. The theme is about trade and economy. will be very happy if someone writes something about it, at least a few sentences

Which statement below accurately describes the carrying capacity of any ecosystem? a. it is not affected by any abiotic or biotic resources. b. it does not affect the species of an ecosystem. c. it is completely dependent upon the food supply. d. it is affected by both abiotic and biotic resources