Cho \(A = \left( { - \infty ; - 3} \right]\);\(B =...

Câu hỏi: Cho \(A = \left( { - \infty ; - 3} \right]\);\(B = \left( {2; + \infty } \right)\); \(C = \left( {0;9} \right)\). Khi đó D =\(\left( {A \cup B} \right) \cap C\) là:

A \(\left( { - \infty ;9} \right)\)

B \(\left( { - 3;9} \right]\)

C \(\left( { - \infty ;2} \right]\)

D \(\left( {2;9} \right)\)