15. Which of these involves reductive elimination? (3 points)
(A) \(\mathrm{Rh(Cl)(PPh_3)_3 + CH_3I\rightarrow trans - Rh(Cl)(PPh_3)_3(CH_3)(I)}\)
(B) \(\mathrm{NH_4[Re(CO)_5] + CH_3I\rightarrow Re(CO)_5CH_3 + NH_4I}\)
(C) \((\mathrm{C_5H_5})\mathrm{Fe}(\mathrm{CO})_2\mathrm{CH}_2\mathrm{CH}_3\rightarrow \mathrm{CO} + (\mathrm{C_5H_5})\mathrm{Fe}(\mathrm{CO})(\mathrm{H})(\pi -\mathrm{CH}_2\mathrm{CH}_2)\)
(D) \((\mathrm{C_5H_5})\mathrm{Mn(CO)_3 + PPh_3}\rightarrow \mathrm{CO} + (\mathrm{C_5H_5})\mathrm{Mn(CO)_2(PPh_3)}\)
(E) \(\mathrm{NH_4[Ni(CH_3)(CO)_3] + HI\rightarrow CH_4 + NH_4[Ni(CO)_3I]}\)