Given the example custom widget Javascript:

In order to employ the Cart view model, what should the custom widget’s widget.json descriptor contain for the imports attribute?
Select an option, then click Submit answer.
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The imports attribute should contain the value “user” because the cart view model belongs to the user
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The imports attribute is only valid for global widgets and is not relevant
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The imports attribute can be empty because the Cart view model is global
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The imports attribute should contain the value “cart”