The ionic equations represent the reactions between four metals, p, q, r and s, and solutions of the salts of the same metals p + q2+ -> no reaction r + p2+ -> r2+ + p q + s2+ -> q2+ + s s + p2+ -> s2+ + p s + r2+ -> s2+ + r s + q2+ -> no reaction what is the correct order of reactivity of the metals? most > least a. p r s q b. q r s p c. q s r p d. s q p r