A milliammeter of range `10 mA` and resistance `9 Omega` is joined in a circuit as shown. The metre gives full-scale deflection for curretn `I` when `A` and `B` are used as its terminals, i.e., current enters at `A` and leaves at `B` (`C` is left isolated). The value if `I` is
A. 100mA
B. 900mA
C. 1A
D. 1.1A
