Which best describes how mexican leaders sought to protect democratic rule after the countryís revolution?

they restricted foreign investment.
they provided free education.
they passed worker protection laws.
they approved a new constitution.

"They approved a new constitution" is the one among the following choices given in the question that best describes how Mexican leaders sought to protect democratic rule after the country's revolution. The correct option among all the options that are given in the question is the fourth option or the last option.