What will be the output of the following PHP code? <?php $a = array("red", "green", "blue"); array_pop($a); print_r($a); ?>

• A. Array ( [0] =&gt; red [1] =&gt; green )
• B. Array ( [0] =&gt; green [1] =&gt; blue )
• C. Array ( [0] =&gt; red [1] =&gt; blue )
• D. Array ( [0] =&gt; blue [1] =&gt; blue )