The circuit below incorporates a permanent magnet moving coil milli-ammeter of range $1\;\text{mA}$ having a series resistance of $10\;\text{k}\Omega$. Assuming constant diode forward resistance of $50\;\Omega,$ a forward diode drop of $0.7\;V$ and infinite reverse diode resistance for each diode, the reading of the meter in $mA$ is
- $0.45$
- $0.5$
- $0.7$
- $0.9$