A data analyst is working with a data frame called sales. In the data frame, a column named location represents data in the format $$city$,$ state$.$ The analyst wants to split the city into an individual city column and state into a new countrycolumn. What code chunk lets the analyst split the location column?

$1$ point

separate$($sales$,$ location, into$=$c$("$city$",$ "country"$),$ sep$=",")$

separate$($sales$,$ location, into$=$c$("$country$",$ "city" $),$ sep$="")$

untie$($sales$,$ location, into$=$c$("$city$",$ "country"$),$ sep$=",")$

separate$($sales$,$ location, into$=$c$("$country$",$ "city" $),$ sep$=",")$