This process resulted in a total of 15 new townships: of which, to date, 7 are still in existence.
(A) of which, to date, 7 are still in existence.
(B) of which number, 7 of the 15 are still, to date, in existence.
(C) of the number 15, 7, to date, are still in existence.
(D) to date of these 15, 7 are still in existence.
(E) to date, 7 of the 15 are still in existence.
There was another thread here in the forum, but like the gmat club test explanation, it too didn't really explain what the problem
...
(A) of which, to date, 7 are still in existence.
(B) of which number, 7 of the 15 are still, to date, in existence.
(C) of the number 15, 7, to date, are still in existence.
(D) to date of these 15, 7 are still in existence.
(E) to date, 7 of the 15 are still in existence.
There was another thread here in the forum, but like the gmat club test explanation, it too didn't really explain what the problem
...







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