What will be the output of the following PHP code ?
<?php
$city_west = array("NYC", "London");
$city_east = array("Mumbai", "Beijing");
print_r(array_replace($city_west, $city_east));
?>
<?php
$city_west = array("NYC", "London");
$city_east = array("Mumbai", "Beijing");
print_r(array_replace($city_west, $city_east));
?>
A. Array ( [1] => Mumbai [0] => Beijing )
B. Array ( [0] => NYC [1] => London )
C. Array ( [1] => NYC [0] => London )
D. Array ( [0] => Mumbai [1] => Beijing )
Answer: Option D
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