What is the error in the following declaration of a static class method?
<code>
1 <?php
2 class car {
3 static $speeds = array(
4 ‘fast’,
5 ‘slow’,
6 ‘medium’,
7 );
8
9 static function getSpeeds()
10 {
11 return $this->speeds;
12 }
13 }
14 ?>
</code>

A.
Static methods must not return a value.

B.
The use of $this from within static methods is not possible.

C.
Static methods need the method keyword instead of the function keyword.

D.
There is no static keyword in PHP.