rubber, clothing, and shipbuilding

[GmatKiss]

In 1933 the rubber, clothing, and shipbuilding industries put into effect a six-hour workday, believing it a seeming permanent accommodation rather than a temporary expedient for what many observers thought was an economy made over productive by advances in technology.

(A) believing it a seeming permanent accommodation rather than a temporary expedient for what many observers thought was
(B) believing it a seeming permanent accommodation instead of a temporary expedient for what many observers thought was
(C) believing that it was not a temporary expedient but a seeming permanent accommodation to what many observers thought of as
(D) not as a temporary expedient but as a seemingly permanent accommodation to what many observers thought was
(E) not as a temporary expedient but believing it a seemingly permanent accommodation for what many observers thought

[GMAT Kolaveri]

I'm with D.

(A) believing it a seeming permanent accommodation rather than a temporary expedient for what many observers thought was
(B) believing it a seeming permanent accommodation instead of a temporary expedient for what many observers thought was
(C) believing that it was not a temporary expedient but a seeming permanent accommodation to what many observers thought of as
(D) not as a temporary expedient but as a seemingly permanent accommodation to what many observers thought was : to vs for split between D and E. To is correct in this context.
(E) not as a temporary expedient but believing it a seemingly permanent accommodation for what many observers thought

[ihatemaths]

IMO D . because it has parallelism not as and but as + seemingly is preferred over seeming.

[patanjali.purpose]

In 1933 the rubber, clothing, and shipbuilding industries put into effect a six-hour workday, believing it a seeming permanent accommodation rather than a temporary expedient for what many observers thought was an economy made over productive by advances in technology.

(A) believing it a seeming permanent accommodation rather than a temporary expedient for what many observers thought was
(B) believing it a seeming permanent accommodation instead of a temporary expedient for what many observers thought was
(C) believing that it was not a temporary expedient but a seeming permanent accommodation to what many observers thought of as
(D) not as a temporary expedient but as a seemingly permanent accommodation to what many observers thought was
(E) not as a temporary expedient but believing it a seemingly permanent accommodation for what many observers thought

From the sentence we can infer that "for what many observers thought was an economy made..." need to modify PERMANENT ACCOMODATION and therefore drop A/B (seeming...is also incorrect)

C - seeming (incorrect) ; another issue is THOUGHT OF AS - it appears observers considers PERMANENT ACCOMODATION AS AN ECONOMY (permanent acco = economy); drop
E - NOT AS A ...BUT BELIEVING IT...

IMO D