The correct answer is C. An increasse in the coyote population.
Step-by-step explanation
The food chain is a system of food relationships between producer, consumer, and decomposer organisms. This system, in other words, serves to inform which organism eats which, because a living being feeds on another that precedes it in the chain and so on is eaten by the one that follows it. According to the example in the question, vegetation would be the first organism in the chain, the second organism would be the rabbit and the third organism would be the coyote. Likewise, if the coyote population increased , the coyotes would eat more rabbits so, the Cottontail rabbit population will decrease. So, the correct answer is A. C. An increasse in the coyote population.