a) Argentina, Brazil, and Chile mediated between the two sides, and an effective agreement was reached.
Explanation:
The United States ocupation of Veracruz started with the Battle of Veracruz and went on for seven months, as a reaction to the Tampico Affair of April 9, 1914. The episode came amidst poor conciliatory relations among Mexico and the United States and was identified with the continuous Mexican Revolution.
