Which of the following statements regarding quadratic equations are true? (A) Solution set for the equation 6x² − 5x = 4 is {−1/2, 4/3} (B) The nature of the roots of the equation 9x² + 6x + 1 = 0 is equal, real and rational. (C) If one root of 4x² − 3x + K = 0 is 3 times the other, then K = 27/256