I Think The answer is d I hope it helps
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I think the relationship is Commensalism ( relationship between two organisms in which one benefits and the other does not benefit nor is harmed ) because the bird benefits and the cow does not benefit nor is harmed. Hope this helped ☺
Answer:
socially
An idea or belief that is developed by a group of people and is not inherently
true or scientifically proven is considered to be constructed socially.