We can work through the answers. Option A is not correct because the author does not say that there is plenty of food, he points out that plenty of food can be obtained, however the producers do not make enough money and therefore they just leave it. Option B is not correct because there is no parallelism in the excerpt. The sentences with There is do not have a grammatical relevance with each-other. The option D is not correct because the excerpt shows author's anger stemming from the irresponsibility of people. Therefore, the correct answer is C.