A galvanometer of resistance $100 \ \Omega$ is converted into an ammeter of range $(0 - 1 \ \text{A})$ using a resistance of $0.1 \ \Omega$. The ammeter will show full scale deflection for a current of about (A) $0.1 \ \text{mA}$ (B) $1 \ \text{mA}$ (C) $10 \ \text{mA}$ (D) $0.1 \ \text{A}$