Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
|  | REVOLUTION OR ROTATION |  | CENTER center of revolution or rotation |  | NAME name for one rotation or revolution |
| --- | --- | --- | --- | --- | --- |
| One | revolution of the Earth | around | the Sun | is called | one Earth year; one year |
| One | revolution of the Moon | around | the Earth | is called | one Moon year |
| One | rotation of the Earth | around | the Earth's own axis | is called | one Earth day; one day |
| One | rotation of the Moon | around | the Moon's own axis | is called | one Moon day |
Question:
What is it called when the earth revolves once around the sun? Select the correct choice to answer the question or fill in the blank.
Choices:
(A) A day
(B) A month
(C) A year
(D) An hour
Answer:
(C) A year