Answer:
The correct answer will be option- mutualism
Explanation:
Organisms interact with each other in an ecosystem in many ways which could prove beneficial or harmful interaction.
The interaction between the whale shark fish and the pilot fish is beneficial to both the fishes and prove mutualistic so the interaction is called mutualism.
The interaction is mutualistic as the pilot fish which swims in the mouth of the whale help get rid of the small pieces of food stuck in the mouth. The pilot fish thus eats the food of the whale whereas the whale benefit pilot fish by not eating the pilot fish.
Thus, mutualism is the correct answer.
