In Mexico, the expression Porfiriato refers to

Athe revolution of 1911 that overthrew Diaz.

Bany kind of authoritarian political oppression.

Cthe oppressive rule of Porfirio Diaz.

Dthe end of the political dominance of the PRI in July 2000.

Verified Answer :

It's letter C Beacuse is the historical period during which the exercise of power in Mexico was under control of Porfirio Diaz.

The correct answer is C. The oppressive rule of Porfirio Diaz

On page 301 it explains the meaning and helps rule out all other options.