13.體重的調控與進食行為有關，正常狀況下何者是源於胃腸道且可影響進食的荷爾蒙? (1)gastrin (2)ghrelin (3)glucagon (4)cholecystokinin (5)ciliary neurotrophic factor
(A)(1)+(2)+(3)
(B)(2)+(3)+(4)
(C)(3)+(4)+(5)
(D)(1)+(3)+(4)
(E)(2)+(4)+(5)