To What Maximum Extent Is Latitude Measured

Multiple Choice

To what maximum extent is latitude measured?

A) To 180 degrees east or west (half way around the earth's surface) .
B) To 90 degrees north or south (as a right angle to a pole) .
C) To 360 degrees in any direction (which completes a circle) .
D) To 45 degree north or south (half way to a pole) .