[RenSoprano]

pawn Код:

CMD:yourcmd(playerid, params[])
{
    new choice[32];
    if(sscanf(params, "s[32]", choice))
    {
        SendClientMessageEx(playerid, COLOR_WHITE, "USAGE: /yourcmd [name]");
        SendClientMessageEx(playerid, COLOR_GREY, "Available names: optinon1, option2");
        return 1;
    }

    if(strcmp(choice, "option1", true) == 0)
    {
        // Your code
        return 1;
    }
    else if(strcmp(choice, "option2", true) == 0)
    {
        // Your code
        return 1;
    }
    return 1;
}

maybe you want something like this