If $P,Q$ and $R$ are subsets of a set $A$, then $R × (P^c \cup Q^c)^c =$
If $P,Q$ and $R$ are subsets of a set $A$, then $R × (P^c \cup Q^c)^c =$
- A
$(R × P) \cap (R × Q)$
- B
$(R \times Q) \cup (R \times P)$
- C
$(R \times P) \cup (R \times Q)$
- D
None of these
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