A tile is selected from seven tiles, each labeled with a different letter from the first seven letters of the alphabet.

The letter selected will be recorded as the outcome. Consider the following events. Event X : The letter selected is found in the word "BEAD". Event Y : The letter selected comes after " D ". Give the outcomes for each of the following events. If there is more than one element in the set, separate them with commas. (a) Event " X and Y" : (b) Event " X or Y" : (c) The complement of the event Y