A card is drawn from a pack of cards. A is the event that an Ace is obtained, B is the event that a card from one of the two red suits is obtained, and C is the event that a picture card is obtained. What cards do the following events consist of?
(a) A ∩ B
(b) A ∪ C
(c) B ∩ Cʹ
(d) A ∪ (Bʹ ∩ C)