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Q)

# A bag contains 4 balls. Two balls are drawn at random and are found to be white. What is the probability that the bag has 3 white balls.

(A)$\large\frac{1}{10}$

(B) $\large\frac{3}{5}$

(C) $\large\frac{2}{5}$

(D) $\large\frac{3}{10}$