Two species of plants that are competitors in nature are grown together in the greenhouse. When they are fed additional nitrogen, species A thrives at the expense of species B. When they are fed additional phosphorus, species B thrives at the expense of species A. Both species show improved growth when they are both given additional sunlight, but additional moisture has little effect on either one. Based on this information, which of the following is most likely to be the limiting resource for both species?1. Commensalism2. Predation3. Herbivory4. Competition5. Amensalism