Placement of adverb- more closely integrated

The financial crash of October 1987 demonstrated that the world’s capital markets are integrated more closely than never before and events in one part of the global village may be transmitted to the rest of the village-almost instantaneously.

(A) integrated more closely than never before and
(B) closely integrated more than ever before so
(C) more closely integrated as never before while
(D) more closely integrated than ever before and that
(E) more than ever before closely integrated as



My Reasoning:

C) more...as -wrong

E) wrong comparison using AS (markets vs events)


Now to choose between A, B and D.