Bumping an old thread

, nice question
(A) believing it a
seeming permanent accommodation rather than a temporary expedient for what many observers thought was
Seeming( adjective) incorrectly modifies the noun accommodation, whereas it actually should modify the adjective permanent. To do so, seeming should be changed to adverb seemingly..
(B) believing it a
seeming permanent accommodation instead of a temporary expedient for what many observers thought was
Same as A,
(C) believing that it was not a temporary expedient but a
seeming permanent accommodation to what many observers thought
of as a same as A, moreover,
thought of as a shows redundancy, thought was is concise.
(D) not as a temporary expedient but as a seemingly permanent accommodation to what many observers thought was
CORRECT(E) not
as a temporary expedient but
believing it a seemingly permanent accommodation for what many observers thought
parallelism error, the highlighted parts are not parallel