1. The plan of an office block for six officers A, B, C, D, E and F is a follows : Both B and CVoccupy office to the right of the corridor (a one enters the office block) and A occupies onthe left ofthe corridor. E and F occupy office on opposite sides of the corridor but theiroffices do not face each other. The offices of C and D face each other. E does not have acorner office. F's office is further down the corridor than A's, but on the same side.
Who is/are F's immediate neighbour/ neighbours?