Dear Friends,
Here is a detailed explanation to this question-
aragonn
Seeming to be the only organization fighting for the rights of poor people in the South, Hosea Hudson, a laborer in Alabama, joined the Communist party in 1931.
(A) Seeming to be
(B) As
(C) In that they seemed
(D) Since it seemed
(E) Because it seemed to be
Choice A: In this answer choice, the first clause incorrectly refers to "Hosea Hudson"; resultantly, the sentence implies that he was the organization. As this meaning is quite illogical, this answer choice is incorrect.
Choice B: This answer choice displays the same meaning-related error seen in Option A. Thus, this answer choice is incorrect.
Choice C: This answer choice displays the same meaning-related error seen in Options A and C. Furthermore, this answer choice displays subject-verb disagreement between the pronoun "they" and the collective noun "organization". Thus, this answer choice is incorrect.
Choice D: This answer choice incorrectly utilizes the word "since" as subordinate conjunction; "since" can only be used as a proposition. Thus, this answer choice is incorrect.
Choice E: This answer choice conveys the intended meaning of the sentence, maintains the subject-verb agreement, and makes proper use of the word "because". Thus, this answer choice is correct.
Hence, E is the best answer choice.To understand the concept of "Collective, Countable, and Uncountable Nouns on GMAT" you may want to watch the following video (~2 minutes):
All the best!
Experts' Global Team