what is the output php array 10 20 30 40 printr..., PHP Arrays, PHP

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Question:What is the output?<?php 
$array = array(10,20, 30, 40); 
print_r(array_pad($array,-8,0)); 
?>

A [0]=> 0, [1]=> 0, [2]=> 0, [3]=> 0, [4]=> 10, [5]=> 20, [6]=> 30, [7]=> 40 
B [0]=> 10, [1]=> 20, [2]=> 30, [3]=> 40, [4]=> 0, [5]=> 0, [6]=> 0, [7]=> 0 
C [0]=> 10, [1]=> 20, [2]=> 0, [3]=> 0, [4]=> 0, [5]=> 0, [6]=> 30, [7]=> 40 
D None

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Question:What is the output?<?php $array = array(10,20, 30, 40); print_r(array_pad($array,-8,0)); ?>

A [0]=> 0, [1]=> 0, [2]=> 0, [3]=> 0, [4]=> 10, [5]=> 20, [6]=> 30, [7]=> 40

B [0]=> 10, [1]=> 20, [2]=> 30, [3]=> 40, [4]=> 0, [5]=> 0, [6]=> 0, [7]=> 0

C [0]=> 10, [1]=> 20, [2]=> 0, [3]=> 0, [4]=> 0, [5]=> 0, [6]=> 30, [7]=> 40

D None

A

Question:What is the output?
<?php $array = array(10,20, 30, 40); print_r(array_pad($array,-8,0)); ?>