Answer:Repeats for each record in the record source.
Step-by-step explanation:A detail line is the line that are drawn to determine the minute and particular details of a model.These line are used for the determination of the additional/extra information about the drawn structure.They are usually drawn in the plane of view sketch.They also get repetitive for record in a source of record.
Other given option are incorrect because they don't define the detail line of a model appropriately .