连接到本机MySQL数据库上的SCHOOL数据库的代码为( ),其用户名为“root”,密码为“manager'
选项：

A:Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/SCHOOL","root","manager");
B:Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/SCHOOL");
C:Connection conn=DriverManagergetConnection(jdbc:mysql://localhost:1433/SCHOOL");
D:Connection conn=DriverManager.getConnection(jdbc:mysql://localhost:1433/SCHOOL""root”,"manager");