Respuesta :
The answer is commensalism because commensalism is a relationship where an organism is benefitted and the other is neither benefitted nor harmed. The barnacle is being benefited and the whale is not being benefited or harmed.
Answer:
Options-(A): Commensalism.
Explanation:
As the barnacles are found on the skin of the whales, being attached to the mammal makes it easy for the barnacles to have more food and nutritional resources to live inside water. While, there is no benefit for the whales during such conditions as the barnacles nor provide nourishment to the specie nor it helps the whale to defend itself against any type of harm.Such relation between any two organisms is then termed as the commensalism by the professionals or we can say by the scientists who study such organisms.

