correct answer for c$++$: Which of the following is an example of a recursive function?

Group of answer choices

MySalaryCalculator$($tempSal$)\{$

if $($tempSal $<=500)$

return $-1$

else

tempSal $=$ tempSal $+1000$

$\}$

MySalaryCalulator$($tempSal$)\{$

if $($tempSal $<=500)$

return $-1$

else

MySalaryCalculator$($tempSal $-500)$

$\}$

MySalaryCalculator$($tempSal$)\{$

if $($tempSal $<=500)$

return $-1$

else

print$($tempSal$)$

$\}$

MySalaryCalculator$($tempSal$)\{$

if $($tempSal $>=500)$

return $-1$

else

tempSal $=$ tempSal $+1000$

$\}$