4. A circular metal ring is situated above a long straight wire, as shown in the figure below. The straight wire has a current flowing to the right, and the current is increasing in time at a constant rate. Which statement is true?
A) There is no induced current in the metal ring because the current in the wire is changing at a constant rate.
B) There is an induced current in the metal ring, flowing in a clockwise direction.
C) There is an induced current in the metal ring, flowing in a counter-clockwise direction.