Two circular coils $A$ and $B$ are facing each other as shown in the figure. The current $i$ through coil $A$ can be altered.

• A
  There will be repulsion between $A$ and $B$ if $i$ is increased.
• B
  There will be attraction between $A$ and $B$ if $i$ is increased.
• C
  There will be neither attraction nor repulsion when $i$ is changed.
• D
  Attraction or repulsion between $A$ and $B$ depends on the direction of current. It does not depend on whether the current is increased or decreased.