A user needs to add a child document to a virtual document in Webtop.
Which actions are available to the user for performing this task?

A.
Add from clipboard
Create a new document
Import from user’s PC

B.
Add from clipboard
Create a new document
Import from user’s PC
Drag and drop from user’s PC

C.
Add from clipboard
Create a new document
Specify a URL

D.
Create a new document
Import from user’s PC
Drag and drop from user’s PC

Explanation: