I guess Alain doesn't want to play.
Instead, he posted a bug report in the melabs forum without doing any research.

So Barry,
The 16F1503 doesn't have a WPUC register.

Yes, I know you'll find references to WPUC in the datasheet ... but it doesn't exist.
There is a WPUA, but no WPUC.

If you need pull-ups on PORTC, they'll have to be external.