OG12 117题中these用法

117. George Sand (Aurore Lucile Dupin) was one of the first
European writers to consider the rural poor to be
legitimate subjects for literature and portray these
with sympathy and respect in her novels.

(A)       to be legitimate subjects for literature and
portray these

(B)       should be legitimate subjects for literature and
portray these

(C)       as being legitimate subjects for literature and
portraying them

(D)       as if they were legitimate subjects for literature
and portray them

(E)       legitimate subjects for literature and to portray
them

我想知道这道题中these的用法，OG上的解释是：These (pl. of this) is a demonstrative pronoun, and here it is unclear what it is pointing to as its antecedent: Subjects is the nearest plural noun antecedent, but these could also point to something not in the sentence, an unknown noun.

请问these和them的用法有什么不同啊？