A workflow is using two Query activities that select recipients who have bought specific products. Each Query activity stores the product as additional data. Both Query activities are then added into a Union activity joining using the keys only option.
What should be the expected results of the Union activity?

A developer is building a campaign that selects recipients the day after recipients contact customer support and send the same email content regardless of day of execution.
A different delivery ID must be associated with each day's send for campaign analysis.
How should the Campaign developer meet the analysis requirements with the minimum daily maintenance?

A campaign developer must store a customer's secondary email address, secondary phone number, and secondary physical address in Adobe Campaign.
The campaign developer extends the recipient schema to perform this task. What is the result of doing this?

An Adobe Campaign Classic Developer needs to programmatically create a workflow based on a workflow template, set an instance variable, and start the workflow. Which out-of-the-box method should be used in this case?