Construct npda's that accept the following languages 011 sigma = {a, b, c}. Give both a verbal explanation 011 how your npda works and the formal definition including the transition function and/or transition graph. You may use JFLAP. a) L = { a^nb^2n: n greaterthanorequalto 0 } b) L = { w: n_a(w) = 2n_b,(w)} c) L = { wcw^R: w elementof {a,b} * }