What causes the Manicheans to find the Old Testament unethical in part? A) it does not mention Mani B) it gives a false account of evil C) it refers the Christ as God D) it seems to endorse polygamy

most unscrupulous opponent of orthodox Christianity in the age of Augustin ... Augustin's answers are only partially satisfactory, owing to his imperfect view ... This is my first reason for rejecting the Old Testament, unless you teach me better ... the Manichæans, and all who find fault with the writings of the Old Testament