Help, It Does not gives out its Inventory Clothings.

Hi all, this code below does not give out inventory clothings when questions are answer correctly. Can anyone tell me where gone wrong?




integer channel = 1000;

default
{
state_entry()
{
llListen(channel,"", "","";
}

touch_start(integer total_number)
{
llDialog(llDetectedKey(0), "Whats is the English Requirement for CMM",
["Grade 1-3", "Grade 1-6", "Grade 1-4"], channel);
}

listen(integer _chan, string _name, key _id, string _option)
{

if ("Grade 1-3"==_option)
{
llSay(0,_name + " You are correct";
llGiveInventory(llDetectedKey(0),"MP02";
}
else
{
llSay(0,_name + " You are wrong, Please Try again!";
}
}
}

llDetectKey() doesn't work in listen() event. Change the line:

//llGiveInventory(llDetectedKey(0),"MP02";
llGiveInventory(_id, "MP02";

Thanks so much!!!!