Final answer:
The sample space for Alonzo's card and ball selection is option A) 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C.
Step-by-step explanation:
The sample space for Alonzo's card and ball selection is option A) 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C. The sample space represents all the possible outcomes when picking a card and then tossing a coin.