One way to use the browser console to view the progression of the value of the totalPrice variable throughout a JavaScript program without impeding the programs operation is to add $\_\_\_\_\_.$a$.$statements such aswindow.alert$("$totalPrice with tax $="+$ totalPrice$)$;after functions that mutatetotalPriceb.double slashes or an asterisk$-$slash to the start of each line that includestotalPricec.statements such asconsole.log$("$totalPrice with tax $="+$ totalPrice$)$;after functions that mutatetotalPriced. a singleconsole$.$log$("$totalPrice $="+$ totalPrice$)$;statement at the end of the program