设已经有Graphics2D对象g2d,RoundRectangle2D对象rRect,绘制对象rRect的代码是

设已经有Graphics2D对象g2d,RoundRectangle2D对象rRect,绘制对象rRect的代码是
A、g2d.draw(rRect)
B、g2d.drawRoundRect(rRect)
C、rRect.draw()
D、rRect.drawRoundRect()
【正确答案】:A