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

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