Why would a developer use getCartsProducts input parameters to reduce the number of products returned in a guided selling experience"?

What happens when the Base Price property is checked for a price list entry?

After initial creation, if a change is made to an object supertype's layout, how is the change propagated to all products linked to the object subtype's in the hierarchy?
Note: This question displayed answer options in random order when taking this Test.

Lengthy on-boarding for new hires is a business challenge historically faced by telecommunications companies.

A company wants to automatically decrease the price of a smartphone product within specified time frames.
What should a developer configure to meet this requirement?