安装Mysql服务的命令是哪一个？（）

A.mysql -u -p用户的密码
B.mysql -uroot -p
C.mysqld -uroot -p用户的密码
D.mysql -uroot -p用户的密码

A.alter user ’root’@’localhost’identified with mysql_navite_password by ’修改的密码’
B.alter user ’root’@’localhost’identified by mysql_password with ’修改的密码’
C.alter user ’root’@’localhost’identified with mysql_password by ’修改的密码’
D.alter user ’root’@’localhost’identified by mysql_navite_password with ’修改的密码’