These seats are reserved ...... our staff.
Aas
Bfor
Cof
Dwith
Answer:
B. for
Read Explanation:
Reserved for means kept or set aside for a particular person or group.
Here, the seats are set aside for the staff members.
As indicates a role or function, e.g., He works as a teacher.
Of expresses possession or a relationship, e.g., a friend of mine.
With indicates association or accompaniment, e.g., She came with her brother.