When a 1.0-m length of metal wire is connected to a 1.5-V battery, a current of 8.0mA flows through it. What is the diameter of the wire? The resistivity of the metal is 2.24 x 10⁻⁸⁰ m.
A) 12 µm
B) 6.0 µm
C) 24 µm
D) 2.2 µm