As Shown in the Figure, Two Parallel Wires Carry a Current

Multiple Choice

As shown in the figure, two parallel wires carry a current $I$ in opposite directions, and this current is decreasing. A rectangular loop is centered between the wires. The direction of the induced current through the resistor $R$ is

A) from $b$ to $a$ .
B) from $a$ to $b$ .
C) No current is induced.