One of President Polk’s key miscalculations in the early planning and

One of President Polk’s key miscalculations in the early planning and execution of the War with Mexico was

A) assuming the Mexican dictator Santa Anna would agree to peace negotiations with the United States after the American military victory at Monterey.
B) expecting that General Zachary Taylor would march across the deserts to Mexico City after the Battle of Buena Vista in February 1847 in order to deal a decisive blow to the Mexican army.
C) failing to recognize, after the inconclusive Battle of Buena Vista, that the U.S. military needed to engage in protracted war in order to accomplish his political goals in Texas, California, and New Mexico.
D) sending General Winfield Scott and a second army of troops for an amphibious landing at the port of Veracruz for an invasion march to Mexico City, rather than reinforcing Taylor’s army for a continued advance into northern Mexico.

ANSWER
Answer: A