61. What monomer(s) is (are) needed to make the polymer shown below?

I. HOCH₂CH₂OH  II. HOOCCH₂CH₂COOH  III. HOCH₂CH₂COOH
IV. HOCH=CHOH   V. HOOCCH=CHCOOH
(A) II
(B) III
(C) I and II
(D) IV and V
(E) II and III

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