Answer:
D. Mutualism gives beneficial effect on both the organisms
A. Competition.
Step-by-step explanation:
Mutualism gives beneficial effect on both the organisms because one organism provide nutrients or food to the other whereas the other organism provide shelter as well as food so in that way both get benefits from one another. Competition type of relationship exists between spring onion plants because of the availability of limited space and nutrient to the plants which leads to competition of resources.