Which construct is the exception handler?

try $\{$

if $($val $<0)\{$

throw runtime$\_$error$("$Error$!")$;

$\}$

$\}$

catch $($runtime$\_$error& excpt$)\{$

cout $<<$ excpt.what$())$;

$\}$

Group of answer choices

catch $\{...\}$

try $\{...\}$

throw runtime$\_$error$(...)$

runtime$\_$error& excpt