GMAT Sentence Correction (SC) | Re: The new government study, whose summary was made to be avail

The new government study,whose summary was made to be available ahead of its publication , highlights the size of Canada’s banking sector in relation to the rest of the country’s economy.

A whose summary was made to be available ahead of its publication
B a summary of which was made available ahead of publication
C which had a summary made available ahead of its publication
D which was made to be available ahead of publication with a summary
E with a summary of which was