When Used in Measuring Linear Distance, the Term "Station" Refers

When used in measuring linear distance, the term "station" refers to a point on a line:

A) That was established by continuous chaining from a beginning point.
B) That is a multiple of a full tape length established by continuous chaining from a beginning point.
C) Where a moving vehicle may stop for fuel or to drop off goods or passengers.
D) Where an EDM reading was taken.