Some more magnetic field/induction questions

So far B), once the switch has been close for time t = infinite, it would have to pass through both resistors, which would make the current 1 A?

So when the switch is immidatly closed, the total current in the 20 $$\Omega$$ would be 0?

For A) The current in the 20 ohm resistor is the current of the whole circuit.

B) It wont flow through the 20 ohm. So what is the current thorugh the 20 ohm at this point then?

C) While it is 0 through the 20 ohm resistor in B, the current still flows through the rest of the circuit. So what would that current be?

(hint, it flows through just the 10 ohm resistor at one point)