What two reasons are most likely to cause this discrepancy?

A user plots a Marker Layer on a mobile device and notices a handful of missing markers compared to when the user plotted the same Marker Layer on desktop.

What two reasons are most likely to cause this discrepancy?
A . The filters on the Layer have been changed
B . The maximum records to plot setting for mobile is considerably less compared to desktop
C . Plot Visible Area is enabled
D . The underlying Salesforce records have been deleted

Answer: B, C

Explanation:

According to the Trailhead module 2, there are two possible reasons for missing markers on mobile devices compared to desktop devices. One is that the maximum records to plot setting for mobile is considerably less compared to desktop, which means that only a subset of records will be plotted on the map. The other is that the plot visible area feature is enabled, which means that only the records that fall within the current map view will be plotted.