People residing in Toronto
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Torontans
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Toronters
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Torontoners
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Torontonians
D
Correct answer
Explanation
Torontonians is the correct demonym for residents of Toronto, following the pattern of Canadian city names ending in -on taking -onian suffix (like Prince Edward Island's Charlottetowners). Toronters and Toronters are incorrect formations, while Torontons is grammatically invalid.