Six people, A, B, C, D, E, and F are ranked by tenure with the company; the person with the most tenure is ranked highest.
A is ranked above B.
E is ranked above both C and D.
The ranking from highest to lowest reads: F, ?, C, A, ?, ?, where the question marks stand for B, D and E in some ordering?
Referring to the above information, which placement listed below is possible?