Which of the Following Statements About Mexico Under the PRI

Which of the following statements about Mexico under the PRI is true?

A) The PRI engaged in regular and public human rights abuses that are still being brought before independent judiciaries.
B) Of the major branches of government, only the judiciary provided a consistent and effective check on PRI power.
C) The PRI never resorted to electoral fraud, but it funneled enough state money into its chosen candidates to guarantee a smooth succession of power.
D) The PRI dominated political power in part by expert co-optation of sources of opposition, like the press.
E) The PRI frequently instituted censorship of the press in the name of public security to protect their political operatives.