During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added to the strain on the country’s debt-ridden economy.

(A) During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added
(B) During the 1980’s it is estimated that approximately $50 billion in private investment capital left Mexico and added
(C) It is estimated that there was approximately $50 billion in private investment capital that left Mexico during the 1980’s and added
(D) It is estimated that during the 1980’s approximately $50 billion in private investment capital left Mexico, adding
(E) Approximately $50 billion in private investment capital is estimated as having left Mexico during the 1980’s, adding

Official Answer: D

I am a bito confused o nthis !!

let me take a walk and come back !! hope to get some inputs : )

Vishu