Select the option figure that will complete the series of question figures:
Read the given pattern carefully and tell which number will come in place of the question mark(?):
Find out the missing item from the following: $ \begin{array}{|c|c|c|} \hline 15 & 6 & 4 \\ \hline 6 & 8 & 7 \\ \hline 2 & 6 & ? \\ \hline \end{array} $
Select the option that best suits the place of question mark (?) in the figure: