When people complain about "big government," they are referring to thesize and power of the federal bureaucracy
size and power of the Senate
oversight activities of the president
oversight activities of the judiciary

The correct answer is C) The Maya and Aztecs developed calendars of 365 days.

The statement about astronomy in Mesoamerica that is TRUE is "The Maya and Aztecs developed calendars of 365 days."

Let's have in mind that Mayans were expert astronomers who observed the starts to make predictions. One of those calendars was called the Haab. It was a solar calendar of 365 days that was divided into 18 months with 20 days. It included 5 extra days. Another important calendar was the Tzolkin. It was the divine calendar with 260 days, divided into 20 periods of 13 days. To track longer periods, they used the Long Count Calendar.

The original Aztec calendar craved in stone can be visited in the spectacular Museum of Anthropology located in México City.

c. The maya and aztecs developed calendars of 365 days.

The correct answer is true.

It is true that during the Civil War, the North effectively used the strategy of total war to weaken the South.  

Total war means the usage of any kind of weapons, the territory, the combat and the soldiers. The Union used total war strategy to win the war at all cost. The Union considered military targets civilian and basic infrastructure in the South. That is why it was lethal. The total war strategy of the Union caused the Southern economy to suffer.

You'r answer is C. He was the first African American to hold elective office.