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Which code segment should you use?

You are developing a Windows Store app by using JavaScript. The app persists a list of
restaurants in the app’s settings. The restaurant list is identified by a key of city. The app
must allow users to remove their restaurant lists from the app’s settings. The following
function call removes the city setting:
deleteListSetting(“city”) ;
You need to remove only city from the settings storage without disrupting other settings.
Which code segment should you use?

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A.

B.

C.

D.

Explanation:


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