Question

Mycorrhizae are the example of
A. mutualism
B. fungistatic
C. amensalism
D. antibiosis

Answer 1

Hint: The meaning of this word "mycorrhiza" is the root fungus. Not only with the roots of the plants don't the interactions occur in the board sense of the term. Plants which don't have roots are also included in the mycorrhizal relationship. Bryophytes are examples of the plants which do not have roots.

Complete answer:
Mutualism particularly is a kind of symbiosis in which either the involved organisms are benefited, or so they thought. Mycorrhiza shows the symbiotic relationship between fungi and plants, which specifically is fairly significant.
The fungi colonize the root system of the host plant providing increased water and fairly mineral absorption capabilities in a pretty big way. While the plant provides the fungus with carbohydrates formed from photosynthesis, which mostly is quite significant.
That is, both of them kind of are benefited, or so they particularly thought. Mycorrhizae generally have the symbiotic association between the plant roots and fungi, so the fungi colonize the root system of the host plant providing increased water and generally mineral absorption capabilities in a particular major way.
The fungi colonize the living room tissue during really active plant growth, really further showing how mutualism is a kind of symbiosis in which both the involved organisms specifically are benefited, particularly contrary to popular belief. The relationship between plants and fungi generally is symbiotic because the plant obtains phosphate and fairly other minerals through the fungus, while the fungus obtains sugars from the plant root, fairly further showing how that is, both of them mostly are benefited in a major way.

Therefore, option A is correct as mycorrhizae are the example of mutualism.

Note:
The interactions between organisms of two different species are defined as mutualism. Organisms benefit from the interaction in mutualisms. For part or all the entire life, two species live and stay near each other. All the symbiotic relationships are not mutualistic.