Speaking from me, I would go for A. C is the plan I'm currently on, and I feel trapped. And it's only going to get worse, because once the student loans get paid off, there's retirement to save for. And then possibly buying a place to live instead of renting. There will always be something that gets in the way of going back to school.

B ... I wouldn't think that it is strictly looked down up as bad ... unless you actually want to work at York. If anything, it is a good back up option to A if you can't get the scholarships/bursaries/funds that you need to execute that plan.