Tính \(\mathop {\lim }\limits_{x \to  - \infty } \...

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

A

  \(0\)                                  

B

  \( - \infty \).                       

C

 \( - 1.\)                                

D   \( - 1\)