Which of the following is not cited as an environmental drawback to the development of aquaculture worldwide? a. Aquaculture often leads to overexploitation of marine organisms. b. Pollution from aquaculture facilities can harm nearby wild organisms and ecosystems. c. Aquaculture can compete for space along crowded coastlines, resulting in the destruction of natural ecosystems like mangroves. d. Many farmed fish species are carnivorous, so can be an inefficient use of other potential food sources.