Which identity holds for any sets?

• a$A \times (B \cup C) = (A \times B) \cup (A \times C)$
• b$A \times (B \cup C) = A \cup (B \times C)$
• c$A \times (B \cup C) = (A \cap B) \cup (A \cap C)$
• d$A \times (B \cup C) = A \times B \cap A \times C$