Adding New Column(s) To A Table

Assignment : Add two new columns to a copy of the departments table, sec0611_departments. One new column, a text column, will be the name of the manager department. The other new column, a numeric column, is for the annual budget of the department.

As of right now I know how to start the code, which (if not mistaken) should look like;

alter table sec0611_departments
add column ' ______ '
add column ' ______ ';

My question is, what value do I insert in place of "name of the manager" (ex. manager_id, first_name?) and same goes for the numeric column. Price? credit_limit? budget?