Which statement is an example of commensalism

Option A

Explanation:

In a commensalism relationship, two species live in association with each other where one species gets the benefit of this relationship while the other is neither harmed nor benefited.  

Here in option A, Egrets eat the insects left after livestock graze but this act of Egrets has no impact (positive or negative) on the the livestock. Thus, it is an example of commensalism

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

silt loam

hope this