Suppose A and B are two events such that $P(A\cap B)=\frac{4}{25}$  and $P(B-A)=\frac{7}{25}$ .Then P(B)=

• A

  $\frac{11}{25}$

• B

  $\frac{3}{11}$

• C

  $\frac{1}{11}$

• D

  $\frac{9}{11}$