Warsaw began to rebuild not only << with brand-new structures, injecting a much-needed boost to the local economy, and also painstaking reconstructions of the old ones >> that had been demolished

(A)
with brand-new structures, injecting a much-needed boost to the local economy, and also painstaking reconstructions of the old ones


(B)
with brand-new structures, injecting a much-needed boost to the local economy, as well as painstaking reconstructions of the old ones


(C)
brand-new structures, injecting a much-needed boost to the local economy, but also painstaking reconstructions of the old ones


(D)
brand-new structures, injecting a much-needed boost to the local economy, but also painstakingly reconstructing the old ones


(E)
brand-new structures, injecting a much-needed boost to the local economy, but they also painstakingly reconstructing the old ones