How can you narrow the scope of your bulk edit in the interface so that not every keyword or ad in your scope would be changed?

How can you narrow the scope of your bulk edit in the interface so that not every keyword or ad in your scope would be changed?
  A)  Use labels and segments
  B)  Use filters and check the box of specific objects you want to edit
  C)  Use columns and segments
  D)  Use filters and segments