The boiling point of 0.2 mol kg–1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in the case ?

BP of 0.2m 'X' (aq.) > BP of 0.2m 'Y' (aq.)This indicates elevation in BP in aq. sol. of 'X' is greater than in aq. sol. of 'Y'This is possible when(a) 'X' dissociates in water & 'Y' neither dissociates nor associates in water(b) 'X' neither dissociates nor associates in water & 'Y' associates in water