In the circuit shown if an ideal ammeter is connected between A and B then the direction of current and the current reading would be (assume $$I_s$$ remains unchanged)

A

B to A and $$\frac{I_s}{2}$$

B

A to B and $$\frac{I_s}{4}$$

C

B to A and $$\frac{I_s}{9}$$

D

B to A and $$\frac{I_s}{3}$$