Respuesta :
Answer: 1 b - 2c - 3a - 4c
Explanation:
1 b
Of all Mesoamerican civilizations, the Mayans developed a complex calendar for this historic period thanks to astronomical observations. The Mayans calendar has many similarities to the calendars we use today.
2c
The Inca leader who was believed to be the direct descendant of the sun god chose his relatives to place at the head of the provinces. The case of power inheritance and assignment has been recorded throughout history in many countries.
3a
Many historians have argued that the farming system was too weak to meet all the needs of society. Also, in this context it is necessary to point out that some historians claim that internal conflict is the cause of failure.
4c
In this context, we can point out that the holy Inca city of Machu Picchu is located in the highest part of the Eastern Andes in Peru. It is located at an altitude of 2300 meters above sea level.