Question

8. The earliest complete calendars were probably based on lunar
observations. But lunar years were not convenient for
agricultural purposes. Therefore, to keep in step with the Sun,
lunar-solar calendars were formed by adding an additional "leap"
month when the observation of crops made it seem necessary.
Eventually the Gregorian civil calendar, a solar calendar that is
calculated without reference to the Moon, became the most
popular method of measuring years.
The word convenient in the passage is closest in meaning to
A) useful
B) ideal
C) proper
D) practical

Answer 1

Respuesta:

Es la Respuesta numero C