An ArcGIS User Has Returned from Performing Field Data Collection

Multiple Choice

An ArcGIS user has returned from performing field data collection with a high accuracy GPS device. Upon importing the GPX files into ArcGIS as shapefiles, the user notices that some of the collected points are now coincident. The user knows that the points should display separately because they are two distinct features. Which environment settings should be changed to make sure that the points are imported in millimeter precision?

A) Output X,Y Domain
B) X,Y Tolerance
C) X,Y Resolution
D) Coincident Points