The answer would be B!
Both presidents have the power to pass legislations, but the congress or parliament can revoke or veto those lesgislations.
After a three-month siege, Spanish forces under Hernán Cortés capture Tenochtitlán, the capital of the Aztec empire. Cortés' men leveled the city and captured Cuauhtémoc, the Aztec emperor.
It allowed farmers to plant water wherever, and help make dry soil more suitable for planting overall.