斜梁AB承受荷载如图所示，哪一个是正确的剪力图？

• A.<img src="https://timg.fentiku.com/97/2016/12/22/t9VAFekNTq.png" title='t9VAFekNTq.png' alt='t9VAFekNTq.png'/>
• B.<img src="https://timg.fentiku.com/97/2016/12/22/atsgZiq69J.png" title='atsgZiq69J.png' alt='atsgZiq69J.png'/>
• C.<img src="https://timg.fentiku.com/97/2016/12/22/oKlb0WsnsS.png" title='oKlb0WsnsS.png' alt='oKlb0WsnsS.png'/>
• D.<img src="https://timg.fentiku.com/97/2016/12/22/QbCQQoQfzU.png" title='QbCQQoQfzU.png' alt='QbCQQoQfzU.png'/>

正确答案：C