Which of the Following Is TRUE of the Military in Mexico

Which of the following is TRUE of the military in Mexico?

A) The Mexican military became subordinate to civilian control in 1946 after it gained representation within the Institutional Revolutionary Party (PRI) .
B) No military officer has been president of Mexico.
C) After the Mexican Revolution, Mexico's Presidents Calles and Cardenas introduced the practice of rotating regional military commands so officers could not build geographic bases of power.
D) Mexican military leaders are prevented from engaging in business ventures so as to avoid corruption in the armed forces.
E) Mexico's military has never been involved in acts of political repression, torture, and killing like in other Latin American states.