What is the name of the relationship in the savannah population of lions and populations of vultures. Why?

1) commensalism (freelogging)
2) the vulture population benefits from the association with the lion population because vultures feed on the remains of victims killed and partially eaten by lions
3) lions are present vultures indifferent

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.