The correct name for FM−→− is MF−→−. (option A)
The correct interpretation of "FM−→−" indicates a movement from F to M. Therefore, the correct options are:
1. MF−→−: This correctly represents a movement from M to F.
2. FD−→−: This represents a movement from F to D, not from F to M.
3. FP−→−: This represents a movement from P to F, not from F to M.
4. FW−→−: This represents a movement from W to F, not from F to M.
Therefore, the correct answer is A, as MF−→− correctly corresponds to the movement from M to F.