Lines of latitude a. run from north to south. c. are parallel to the equator. b. start in greenwich, england. d. indicate magnetic declination.

I believe the answer would be:  c. are parallel to the equator

Latitude lines lie from the east to the west of the earth's circle.

And equator is basically the latitude at the exact middle of the earth. So both of these lines are parallel to one another.

one of Latitude's main function is to be used together with longitude to pinpoint an exact location on the earth's surface

The answer is C. without out a doubt please ler me know if this helped. Don´t forget to rate