\(\mathop {\lim }\limits_{x \to  + \infty } \dfrac...

Câu hỏi: \(\mathop {\lim }\limits_{x \to  + \infty } \dfrac{{3{x^2} - 2x - 1}}{{{x^2} - 1}}\)

A \(-\infty\)

B \(+\infty\)

C \(3\)

D \(-3\)