In a card game Alex two diamonds, three spades, 4 clubs, and one heart. Without being able to see the cards, Wes is going to pick one of Alex‘s cards. What is the probability that Wes will pick a spade or a club?

A. 3/10
B. 3/7
C. 1/2
D. 7/10

There are a total of 10 cards, and 3 of them are either spades or clubs. Therefore, the probability of Wes picking a spade or a club is 3/10, which is answer choice A.