My ans is C. (actual no. of female voters towards K = 1450)
However, we do not know the number of Democrats and Republicans invovled.
It is already given in the question. "Of the 4800 voters who voted for or against Resolution K, 1800 were Democrats and 3000 were Republicans."
another 200 probably did not cast. So unless we know exactly how many came to cast their vote, we don't know exactly how many voted for and how many voted against the resolution.
From the stem, "Of the 4800 voters who voted for or against Resolution K", it is assumed that people are forced to support either towards or against K. (If you want to think about not casting vote, there is also a category who gave nuetral vote