There are 4 aces in a deck of 52 cards.
Probability that Don draws an Ace on his first attempt = 4/52
Since one ace is drawn, the number of aces in the deck is 3 and total cards are 51.
Probability of drawing a second ace = 3/51
The probability of drawing 2 aces = 4/52 x 3/51 = 1/221
So, option B gives the correct answer