Why did president Pierce get credit for for the Ostend Manifesto and the Gadsden Purchase? And why is Tyler, Polk, Taylor, and Fillmore the incorrect answer for the president who got credit?

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a. creating terraces for farm fieldsb. practicing religious ceremoniesc. playing a ball game with stone hoopsd. protecting a city from invading armies