Which three statements describe webhooks in Commerce Cloud? (Choose three.)

What are two operational parameters that are configurable by merchants in the Commerce Cloud Administration UI? (Choose two.)

Given the example custom widget JavaScript:

In this example, what does $ represent?

Your client company has created a seasonal site that shares layouts with the default site, but has a different design theme that they have created on the Design page.
What do they need to do in the Administration UI to associate the new theme the seasonal site?

The Payment Processing menu on the Settings page of the Administration UI has a Payment Options property with two choices: Full Payment Required and Allow Partial Payment.
When should the Allow Partial Payment option be selected?