Finish this statement

the prime meridian is a line of

a. latitude.
b. longitude.
c. absolute measurement
d. abstract measurement

The Prime Meridian is a line of B.longitude and its longitude is defined as 0 degrees in geographical coordinate system. Longitude is a geographic coordinate that is measured in degrees and indicates the east-west position of a point on the surface of the Earth. It is denotes as a greek letter lambda (λ).

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