What do lines of latitude measure?

Question

distance from the equator in degrees east or west of the equator
distance from the equator in degrees north or south of the equator
a distance from the prime meridian in degrees east or west of the prime meridian
a distance from the prime meridian in degrees north or south of the prime meridian

Answer 1

Lines of latitude measure the distance from the equator in degrees north or south of the equator.