A.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y = \dfrac{1}{2}\)
B.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y =  - 3\)
C.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y =  - 1\)
D.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y = 1\)

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