Which of the subsequent is NOT a gatekeeper?
A. A program director at the National Science Foundation who screens all funding applications to ensure conformity to the application criteria in the past forwarding them to the review board.
B. An account executive who accepts a marketing plan before it is submitted to the client.
C. A receptionist for a small business who unlocks the mail and then date-time stamps each piece before passing it on to its owner.
D. The HR director of a large university who screens altogether internal applicants for eligibility previously sending applications to the interviewers for a specific position.