Mutualism is defined as the relation or association of organisms in which the organism can either be benefitted or not benefit.
Commensalism is a type of association in which one organism gets the benefit, while the other is not harmed or benefitted.
The correct option is:
Option D. Birds feed off the insects that are stirred up from the grasses as cattle move through
Commensalism is a type of mutualism, in which one of the organisms is benefitted while the other is neither harmed nor profited.
The example of birds eating insects that are stirred up from the grasses is a type of commensalism. In this, the birds are benefitted while the cattle have no impact on them.
Therefore, Option D is correct.
To know more about commensalism, refer to the following link:
https://brainly.com/question/16712254
