The correct option is A Institutional Revolutionary Party (PRI)
Since its independence in 1930,
Mexico holds elections after every six
years to elect its President. The
country has never been under a
military or dictator’s rule. But until
2000 every election was won by a party called PRI (Institutional
Revolutionary Party). Opposition
parties did contest elections but
never managed to win. The PRI was
known to use many dirty tricks to win
elections. All those who were
employed in government offices had
to attend its party meetings. Teachers
of government schools used to force
parents to vote for the PRI. The media largely ignored the activities of
opposition political parties except to
criticize them. Sometimes the polling
booths were shifted from one place
to another in the last minute, which
made it difficult for people to cast their
votes.