Source:

https://www.cic.gc.ca/english/visit/visas.asp

Find out if you need a visa to travel to Canada

我要拿working holiday 的POE (即port of entry, 即letter of introduction) 到機埸換取一年的working permit

所以揀"I'm applying for my first work permit"

結果: 加拿大已經幫你申請了, 你不用再申請