If $P(A\cap B)=\Large\frac{7}{10}$,and $P( B)=\Large\frac{17}{20}$,then P(A|B) is equals

Question

$\begin{array}{1 1}(A)\;\frac{14}{17}\quad(B)\;\frac{17}{20}\quad(C)\;\frac{7}{8}\quad(D)\;\frac{1}{8}\end{array}$