Are Nurses Who Work as Team Leaders,overseeing the Nursing Care

Are nurses who work as team leaders,overseeing the nursing care provided by other nurses,considered supervisors by the National Labor Relations Act?

A) Yes;these nurses are supervising others.
B) They are considered supervisors only if they supervise more than three other nurses.
C) There is still debate over this issue.
D) No;there is too much variation in a team leader's day-to-day responsibilities.