• A.<img src="https://timg.fentiku.com/javaimportItems/2847b372203443ba93cfb871c080ce65/images/5dfcf.jpg"><br/>
• B.<img src="https://timg.fentiku.com/javaimportItems/2847b372203443ba93cfb871c080ce65/images/5ecdb.jpg"><br/>
• C.<img src="https://timg.fentiku.com/javaimportItems/2847b372203443ba93cfb871c080ce65/images/5f98b.jpg"><br/>
• D.<img src="https://timg.fentiku.com/javaimportItems/2847b372203443ba93cfb871c080ce65/images/6063e.jpg"><br/>

正确答案：B