In formula (C), X31 represents a hydrogen atom or a group capable of being released by the coupling reaction with the oxidation product of an aromatic primary amine developing agent (hereinafter referred to as a releasing group and including a releasing atom) and typical examples of the releasing group are a halogen atom, --OR41, --SR41, --OCOR41, --NHCOR41, --NHCOSR41, --OCOOR41, OCONHR41, a thio