You are developing a Windows Store app that will be used to manage contacts.
You need to provide users with the ability to add contacts by using the app. All new contacts
must be visible in the people hub.
Which class should you use to add the contact?

A.
ContactPicker

B.
ContactManager

C.
ContactPickerUI

D.
ContactXnformation

Explanation:

ContactManager class
Represents a service that source apps can call to access contact data.