which best explains how the institutional revolutionary party (pri) maintained power in mexico for many…

which best explains how the institutional revolutionary party (pri) maintained power in mexico for many years?\nit defeated opposition parties by controlling congress and using election fraud.\nit ruled so well that people prospered and opposing parties did not succeed.\nit acted like a dictatorship and jailed those who opposed the way they ruled.\nit offered the working class many benefits and kept dissension to a minimum.
Answer
Brief Explanations:
The PRI maintained power in part through political - machine like tactics. It controlled Congress and engaged in election fraud to defeat opposition parties. While it did offer some benefits to certain groups at times, the main way it stayed in power was through controlling political institutions and unfair electoral practices.
Answer:
It defeated opposition parties by controlling congress and using election fraud.