Which of the Following Events Did NOT Contribute to the Start

Which of the following events did NOT contribute to the start of the Mexican peso crisis of 1994?

A) Mexico had entered a free-trade agreement with the United States and wanted to keep the peso exchange rate fixed relative to the U.S.dollar.
B) The Mexican government kept the peso strong to improve Mexicans' standard of living before an important election in 1994.
C) A rebellion occurred in southern Mexico.
D) The United States abruptly raised interest rates to reduce inflation.
E) A Mexican ruling party official was assassinated.