Sundew is the carnivorous plant in the options given. Sundew plant catches and digests insects to get nutrients such as nitrogen and phosphorus, which are present in low concentrations in the soil where it grows. The sundew plant has leaves covered with small, hair-like structures that produce a sticky, mucilaginous substance. The substance traps small insects, which are then digested by the plant. This adaptation is necessary for survival in nutrient-poor environments. Therefore, Sundew is a carnivorous plant.