FUNCTION $06.$ If the following swapNumbers function is used to swap numbers in any sorting algorithm, it will:

void swapNumbers$($int& $a,$ int& $b)\{$

int temp $=b$;

$b=a$;

$a=$ temp;

$\}$

Not guarantee swapping, as this involves call by value.

Guarantee swapping, as this involves call by reference.