In the following code, which class can be instantiated? 1 <?php 2 abstract class Graphics { 3 abstract function draw($im, $col); 4 } 6 abstract class Point1 extends Graphics { 7 public $x, $y; 8…

In the following code, which class can be instantiated? 1 <?php 2 abstract class Graphics { 3 abstract function draw($im, $col); 4 } 6 abstract class Point1 extends Graphics { 7 public $x, $y; 8 function __construct($x, $y) { 9 $this->x = $x; 10 $this->y = $y; 11 } 12 function draw($im, $col) { 13 ImageSetPixel($im, $this->x, $this->y, $col); 14 } 15 } 17 class Point2 extends Point1 { } 19 abstract class Point3 extends Point2 { } 20 ?>