Write a Description of the Shaded Region Using the Symbols $\cup$

Multiple Choice

Write a description of the shaded region using the symbols A, B, C, $\cup$ , $\cap$ , -, and ' as needed.
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A) $A \cup B$
B) $A - B$
C) $( A \cap B ) ^ { \prime }$
D) $\mathrm { A } ^ { \prime } \cap \mathrm { B } ^ { \prime }$