What are the big five schedule I banks in Canada?

a) Royal Bank of Canada (RBC), Toronto-Dominion Bank (TD), Bank of Nova Scotia (Scotiabank), Bank of Montreal (BMO), Canadian Imperial Bank of Commerce (CIBC)
b) HSBC, National Bank of Canada, Laurentian Bank, Desjardins, ATB Financial
c) RBC, TD, Scotiabank, BMO, CIBC, HSBC
d) BMO, RBC, TD, Scotiabank, CIBC