Two numbers a and bare chosen at random from the set {1, 2, 3, 4, ..., 9) with replacement. The probability that the equation x + 2 (a - b)x+b=0 has 2 Column I (A) Real and distinct roots is p, then the value of [9 p], where [-] denotes the greatest integer function, is Column II (p) 2 Column I (B) Imaginary roots is p2, then the value of (q) [9p], where [] denotes the greatest integer function, is (C) Equal roots is p3, then the value of [81 p.], where [] denotes the greatest integer function, is Column II 3 B (D) Real roots is P4, then the value of [9 p], (s) where [] denotes the greatest integer function, is 4 5