Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Somatic cell counts (SCC) is widely used to determine the severity of mastitis in dairy cows.
Reason (R) : Somatic cells, primarily white blood cells, decrease in response to inflammation or infection in the mammary gland.
In light of the above statements, choose the correct answer from the options given below: