In bag A there are 5 red balls, X green balls and 7 yellow balls. Probability of drawing one green ball from bag A is 2/5. In bag B there are (X – 3) red balls, (X – 4) green balls and 6 yellow balls. 2 balls are drawn from bag B. Find the probability that both the balls are red in colour?
A. \(\frac{3}{11}\) B. \(\frac{4}{21}\) C. \(\frac{5}{21}\) D \(\frac{2}{23}\) E. None of these