Rental Rates!_Experts please help.

[gmat_perfect]

Although unhappy with the high rent her company was paying for its suburban office building, the chief executive recognized rental rates for buildings in the suburbs as far lower than it typically is for property that is located within the city limits.

(A) rental rates for buildings in the suburbs as far lower than it typically is for property that is located within the city limits
(B) rental rates for buildings in the suburbs as being far lower than what the rates typically charged within the city limits had been for property located there
(C) rental rates typically being charged for property located within the city limits to be far lower as they typically were within the city limits for the property there
(D) that rental rates for buildings in the suburbs were far lower than rental rates typically being charged within the city limits for property located there
(E) that rental rates for buildings in the suburbs were far lower than those typically charged for property located within the city limits

OA: E

Why is being incorrect in the options B, C, and D?

Thanks.

[gmatmachoman]

# recognised need to be follwed by "that"

So D& E are in race.

D is out becox of poor construction.

E does the proper comparision of rentals rates of suburbs & city properly.