Answer:
Conductivity
Step-by-step explanation:
The current in a wire is directly proportional to the wire's conductivity, which is a measure of its ability to conduct current. Conductivity is the reciprocal of resistivity, and the higher the conductivity, the lower the resistivity, making it easier for current to flow through the wire. Therefore, all other things being equal, wires with higher values of conductivity will carry higher currents.