Which of the following lines of analysis has correct syntax?

If $($Level $>30$ && Status $==="$ON$")\{$ return "ALARM"; $\}$ else $\{$ nooutput$()$; $\}$

'Level' $>30$ && 'Status' $=="$ON$"?$ "ALARM" : nooutput$()$

if 'Level' $>30$ and 'Status' $="$ON$"$ then "ALARM" else nooutput$()$

"ALARM" if $($level $>30$ and Status $=="$ON$")$ else None fOR OSISoft PI Assets