\(\underset{x\to -\infty }{\mathop{\lim }}\,\frac{...

Câu hỏi: \(\underset{x\to -\infty }{\mathop{\lim }}\,\frac{2x-1}{3-x}\) bằng

A

 -2.                                          

B

 \(\frac{2}{3}\).                                               

C

 1.                               

D  2.