Correct Answer: P = Q

Solution : Given:
H < E = D < P and C = E > Z = Q
After combining the above-given equation, we get – H < E = D = C > Z = Q, D < P

Let's check each option –
First option: D > H; True, as  H < E = D makes D > H.
Second option: P > Z; True, as Z < D < P makes P > Z.
Third option: P = Q; False, as there is no direct relation between P and Q.
Fourth option: D = C, True, as D = C is given.

So, only the equation in the third option is incorrect. Hence, the third option is correct.