The correct option is B <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
The imaginary line passing through the center of the earth horizontally is called the Equator.
The imaginary line passing through the center of the earth horizontally is called the Equator. This imaginary line divides the earth into two hemispheres. It is an imaginary line and does not exist in real life.