In a standard card deck, you have a total of 52 cards. Half of the card (26 cards) is black color, and a quarter(13 cards) of the card is diamond. Out of 26 black color cards, 13 of them spades and the other 13 is club. There is 0 diamond card out of 26 black color cards.
Then, the probability of diamond card if the card drawn black will be: 0/13= 0%
It is impossible to draw a diamond card since all diamond is red color.
The rest of calculation is same..
