what will be the correct output of following syntax php total..., PHP Input/Output, PHP

Question:What will be the correct output of the following syntax?<?php
$total=”45 fire engines”;
$incoming=”10”;
$total=$incoming+$total
?>

A 55 
B 45 fire engines 
C 45 fire engines10 
D 55 fire engines

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+ AnswerA

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Question:What will be the correct output of the following syntax?<?php $total=”45 fire engines”; $incoming=”10”; $total=$incoming+$total ?>