Three identical dice are rolled. The probability that same number appears on them, is

Three identical dice are rolled. The probability that the same number will appear on each of them is

Three identical fair dice are rolled. The probabilitl,that the same number appears on each of them is

Three identical dice are rolled once.The probability that the same number will appear on each of them,is (a) (1)/(6) (b) (1)/(36)( c) (1)/(18) (d) (3)/(28)