蓝队队员在监控日志中看到http://example.com/online/show.php?id=12%27%20and%20select%20password20%from%20userlist，可初步判断攻击者在尝试那种攻击？____
A.SQL注入漏洞
B.远程代码执行漏洞
C.任意文件读取漏洞
D.XSS漏洞

【正确答案】A