单选题

如程序所示,绘制完一个半圆圆弧,画笔最终坐标位置是?(?)

import turtle

turtle.pendown()

turtle.circle(50,180)

turtle.penup()

turtle.done()

A

(0,50)

B

(0,100)

C

(50,0)

D

(100,0)

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