A person's phone number would serve as a good primary key

In the accompanying figure, which callout points to the charting tabs?

A. D B. C C. B D. A

What will be output from the following code:

``` public void t e s t 7 ( ) { int x = 1 2 ; int y = 0 ; while ( x < 10 j j y < 1) { x = x + 1 ; y = y + 1 ; System . out . p r i n t l n ( x + " , " + y ) ; ] } ```