Microbes In Human Welfare

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Spirulina is a microbe that can be used for reducing environmental pollution.

Reason (R) : Spirulina is a rich source of protein, carbohydrates, fats, minerals and vitamins.

In the light of the above statements, choose the most appropriate answer from the options given below: