(4) Complete the frllowing reactions and wnite a detaibed mechanism for esch. Reaction (B), (C), and (E) are radical reactions. Hee a ennved single-basbed arrow to show the le- movements in thea mechanisms. i.e. (i). Reaction (D), (D) are neactione that ocur by polar mechanisms. Use a curved double-babed assouto Show the 2e - movements in these mechanows. i.e. (.. D). Show all nadical centere or charges explicitly