Which three are true about roles?

选择了： Roles can be granted to users.、Roles can be granted to roles.、Object privileges can be granted to roles.

选择了： Roles can be granted to users.、Roles can be granted to roles.

选择了： Roles can be granted to users.、Object privileges can be granted to roles.

选择了： Users can be granted to roles.、Roles can be granted to roles.、Object privileges can be granted to roles.

选择了： Users can be granted to roles.、Roles can be granted to roles.

选择了： Users can be granted to roles.、Object privileges can be granted to roles.

选择了： Roles can be granted to roles.、Object privileges can be granted to roles.