Consider the productions A → PQ and A → XY. Each of the five non-terminals A, P, Q, X and Y has two attributes: s is a synthesized attribute, and i is an inherited attribute. Consider the following rules.Rule 1: P.i = A.i + 2, Q.i = P.i + A.i, and A.s = P.s + Q.sRule 2: X.i = A.i + Y.s and Y.i = X.s + A.iWhich one of the following is TRUE?

• A. Both Rule 1 and Rule 2 are L-attributed.
• B. Only Rule 1 is L-attributed.
• C. Only Rule 2 is L-attributed.
• D. Neither Rule 1 nor Rule 2 is L-attributed.