Jamal, his wife and two teenage children are all Canadian citizens.For the last 2 years he and his family have been living in Mexico while he works for the Mexican subsidiary of a Canadian company.Jamal still owns his house in Canada.His wife and children stay there for 2 months in the summer and he spends 4 weeks a year there.The rest of the time the house is empty as his wife visits family in Canada regularly.Jamal has no definite plans to return to Canada and loves living in Mexico.However, since his mother-in-law is very ill, it is possible that his wife will have to return to Canada for at least 6 months to nurse her mother.Which of the following statements is correct?

a.Jamal is considered a non-resident of Canada.

b.Since Jamal owns a house in Canada that is not rented out under a long-term lease he is considered a Canadian resident for income tax purposes

c.Jamal is considered a part-time resident of Canada for the 4 weeks he spends in Canada.

d.If Jamal's wife returns alone to Canada to care for her mother, Jamal is considered a part-time resident of Canada for the 6 months she is in Canada.