In the accompanying figure, Item 2 points to the ____.

Based on the discussion in Section 10.4.2, give a precise de?nition of when an access path covers the use of projection, union, and set-di?erence operators.

What will be an ideal response?

In Firefox, you select an access key by holding down the ____ keys and simultaneously pressing the access key.

A. Ctrl B. Alt C. Shift+Alt D. Shift+Ctrl