2. Which of the following description of optimal foraging model is correct ? (A) A model of balancing risk and reward when animals forage. (B) Longer the foraging path, more preys animals can get. Therefore animals have the tendency to maximizing foraging paths. (C) It indicates the most efficient way of killing a prey once animals get it. (D) It describes how a predator consume their prey. (E) None of these descriptions above.