Answer
There is no induced current in the three loops.
Work Step by Step
$\Phi = B~A$
$\mathscr{E} = -\frac{d\Phi}{dt} = -A~\frac{dB}{dt}$
The current in the long wire produces a magnetic field around the wire. However, since the current is constant, the magnetic field is constant. Therefore, there is no change in magnetic flux through the three loops so there is no induced emf and no induced current.
There is no induced current in the three loops.
