Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: With the addition of just 5 percent lithium carbonate, a cone 10 glaze can be converted to a cone 6 glaze.
Reason R: Just 0.5 to 1 percent addition of lithium carbonate can make a matt glaze turn glossy.
In the light of the above statements, choose the most appropriate answer from the options given below