The Haka war dance is one of the traditions that
has been preserved by the Maori people until today, probably because the players of New Zealand's rugby team perform it before every international game.
A. has been preserved by the Maori people until today, probably because the players of New Zealand's rugby team perform it before every international game
B. have been preserved by the Maori people until today, probably because the players of New Zealand's rugby team performs it before every international game
C. have been preserved by the Maori people until today, probably because before every international game, the dance is performed by the New Zealand rugby team
D. have been preserved by the Maori people until today, probably because before every international game, the team of New Zealand's rugby players perform it
E. have been preserved by the Maori people until today, probably because before every international game, the New Zealand team of rugby players perform it