Answer:
A case sensitive comparission better to use library function strcmp().
Explanation:
The part number references are string objects. In order to perform a case sensitive comparission? it is going to be better if one make use of a library function strcmp().
This will work best for a part number reference consideringthe fact that it is a string object. This is simply because, string objects are best implemented using library function when the string object happens to be used in a case sensitive comparison.
