单选题：以下命令，不正确的是：

以下命令，不正确的是：
@[C](2)

A. ```
import turtle
turtle.setup(800, 600)
```
B. ```
import turtle as t
t.setup(800, 600)
```
C. ```
import turtle
setup(800, 600)
```
D. ```
from turtle import setup
setup(800, 600)
```



A.```
import turtle
turtle.setup(800, 600)
```
B.```
import turtle as t
t.setup(800, 600)
```
C.```
import turtle
setup(800, 600)
```
D.```
from turtle import setup
setup(800, 600)
```


答案：C