Determining my residency status in Canada in 2017 for tax return

Hi. I'm really confused whether I was a resident/ non-resident/ deemed resident in Canada in 2017. 

I entered Canada with a 1 year temporary work permit on April 25th, 2017 in Ontario and after working few months I moved to BC around August 23rd. I spent another few months working part time job in BC, and then I came back to my country (South Korea) on December 1st, 2017.

I had significant residential ties back then like a bank account, I rented a house, I had my cell phone, ID card but I canceled everything when I came back to my country. 

I'm now in South Korea and I'm going to BC this September for school and I'm going to stay there 2+ years. I haven't applied for study visa yet though.

In this case, should I claim my tax return as a resident and Is it correct to fill out this part like this?

"Enter your province or territory of

residence on December 31, 2017: BC"

In conclusion, I spent more than 183 days in Canada in 2017, and had significant ties but don't have any now, and I left Canada before December 31, 2017. I'm in South Korea now.

Thank you.