Adding wrong answers to a quiz

Hi there I have this code demo for a quiz that I downloaded from a old question answered by redesign. I was wondering how I would add a flase anaswer option. Is it just a case of adding another button?

Any help would be much appiciated....

i = 0;

sym.$("btn").click(function(){

          i++;

          sym.play("s" + i);

          if (i==1){

                    q1 = 20;

                    //sym.$("question1").html(q1);

          }

          if (i==2){

                    q2 = 10;

                    //sym.$("question2").html(q2);

          }

          if (i==3){

                    q3 = 60;

                    //sym.$("question3").html(q3);

          }

          var FinalScoreHolder = q1 + q2 + q3;

          if (i=4){

                    //var FinalScoreHolder = q1 + q2 + q3;

                    sym.$("grade").html("You scored "+FinalScoreHolder+"%");

                    if (FinalScoreHolder >= 89) {

                    // play the timeline from the given position (ms or label)

                    sym.play("pass");

                    } else {

                    // play the timeline from the given position (ms or label)

                    sym.play("fail");

                    }

          }

});