When you copy an object to the Clipboard, it can be pasted into any Office document

Which of the following is not a selection of options related to downloading and installing updates?

a. Install updates automatically (recommended) b. Download updates but let me choose whether to install them c. Email me when updates are available d. Never check for updates (not recommended)

Explain the implementation of a level-order traversal of a tree.

What will be an ideal response?