The table below gives the percent of students in each grade at Annville and Cleona elementary schools:
\begin{array}{cccccccc}
& \underline{\textbf{K}} & \underline{\textbf{1}} & \underline{\textbf{2}} & \underline{\textbf{3}} & \underline{\textbf{4}} & \underline{\textbf{5}} & \underline{\textbf{6}} \\
\text{Annville:} & 16\% & 15\% & 15\% & 14\% & 13\% & 16\% & 11\% \\
\text{Cleona:} & 12\% & 15\% & 14\% & 13\% & 15\% & 14\% & 17\% \\
\end{array}
Annville has 100 students and Cleona has 200 students. In the two schools combined, what percent of the students are in grade 6 ?
Answer Choices
A. 12 \%
B. 13 \%
C. 14 \%
D. 15 \%
E. 28 \%