Answer
We can rank the three sections according to the number of conduction electrons per cubic meter:
$A = B = C$
Work Step by Step
The number of conduction electrons per cubic meter is an intrinsic property of copper.
Since all three sections are made of copper, this property is equal for all three sections.
We can rank the three sections according to the number of conduction electrons per cubic meter:
$A = B = C$
