Question

1.
mayan hieroglyphs, 13th or 14th century
inca quipu or \talking knots,\ 14th, 15th, or 16th century
aztec sacred calendar, 16th century
options:
use of bronze or iron
a strong, united empire
record - keeping
monotheism
clear all

Explanation:

Mayan hieroglyphs, Inca quipu, and Aztec calendar were used for recording information (history, events, time, etc.). "Use of bronze/iron" isn't a common trait of all three (Mesoamerican civilizations had limited metal use for tools/weapons, not as a defining record - related trait). "A strong, united empire" is incorrect (Mayans were city - states, Incas had an empire but Mayans didn't, Aztecs had a tribute - based empire but not as a united empire in the same way, and the items are about record - keeping not empire structure). "Monotheism" is wrong as these civilizations were polytheistic. So the correct option is related to record - keeping.

Answer:

Record - keeping (the option with "Record - keeping")