What is the benefit of using sample reports in the HubSpot custom report builder?

While sample reports cannot be customized, they create a controlled and isolated environment where you can test and experiment with various data dimensions and measures.
Once you select a sample report to build, HubSpot will preconfigure your dimensions and measures in the builder, which you can later customize.
Upon creation, sample reports are automatically emailed to your HubSpot admin, so you don’t have to worry about tedious follow-up.
Sample reports use artificial intelligence to not only preselect dimensions and measures, but based on the information in your account, create highly relevant custom filters.

The correct answer is:

Once you select a sample report to build, HubSpot will preconfigure your dimensions and measures in the builder, which you can later customize.