Answer :
Option C. buffaloes.
The plural for buffalo can be either buffaloes or buffalo, as per Collins Cobuild English Dictionary.
The plural for goose is geese, for ox is oxen and for knife is knives.
The plural for buffalo can be either buffaloes or buffalo, as per Collins Cobuild English Dictionary.
The plural for goose is geese, for ox is oxen and for knife is knives.