If \( A \) and \( B \) are independent events with \( P(A)=0.6 \) and \( P(B)=0.3 \). Find the \( P\left(A / B^{\prime}\right) \) Select one: a. \( 0.4 \) b. \( 0.3 \) c. \( 0.6 \) d. \( 0.7 \)