Q.) People in the Philippines uses Englog, an informal type of English merged with Tagalog words.;the
most commonly spoken form of Englog is called Konyo English.

A) uses Englog, an informal type of English merged with Tagalog words.;the most
commonly spoken form of Englog
B) use Englog, an informal type of English merged with Tagalog words, the most
commonly spoken form of which
C) use Englog, an informal type of English merged with Tagalog words, the most
commonly spoken form of them
D) uses Englog, an informal type of English merged with Tagalog words, the most
commonly spoken form of which
E) uses Englog, an informal type of English merged with Tagalog words; the most
commonly spoken form of Englog

Here the OA is B.
I have a doubt regarding the option E. Since the 2 sentences are separated by a semi-colon, is that the only reason of eliminating this option or is there anything else?