Which statement is TRUE when importing an Excel file with multiple worksheets into SAS Visual Analytics?

In SAS Visual Analytics Explorer, when a date data item is dragged onto an Automatic Chart visualization either a bar chart or a line chart will be created.
What determines the type of chart created?

A report designer can change the data source for a report.
Which statement is true when the new data source is selected?

A content developer creates a report in SAS Visual Analytics Designer and adds the above alert to an object within the report. Assume the system is queried daily on Day 1, Revenue is $600,000 on day 2 revenue drops to $500,000, what happens with the alert notification.

Refer the exhibit below:

What is the minimum number of report objects required to create this report in SAS Visual Analytics Designer.