39. 利用胰蛋白酶可將某胜肽水解為 E-G-W-A-K、F-S-D-K 與 A-A-K，利用胰凝乳蛋白酶可水解此胜肽為 A-K-F、A-A-K-E-G-W 及 S-D-K，則此胜肽的正確序列為何？
(A) A-K-F-A-A-K-E-G-W-S-D-K
(B) E-G-W-A-K-F-S-D-K-A-A-K
(C) A-K-F-S-D-K-A-A-K-E-G-W
(D) A-A-K-E-G-W-A-K-F-S-D-K
(E) E-G-W-A-K-A-A-K-F-S-D-K