diff --git a/www-api/app/Controllers/WrenchResources.php b/www-api/app/Controllers/WrenchResources.php
index 88c3a952..84c520c5 100644
--- a/www-api/app/Controllers/WrenchResources.php
+++ b/www-api/app/Controllers/WrenchResources.php
@@ -18,6 +18,19 @@ class WrenchResources extends BaseController
             $b = rand(1,30);
             $c= $a+$b;
 
+            $ansPos = rand(1,4);
+            for ($ii=1; $ii<=4; $ii++){
+                if ($ii== $ansPos){
+                    $next_question["option_mix"][]= $c;
+                }else
+                {
+                    $ansRand = rand(1000,9999);
+                    $next_question["option_mix"][]=   ($ansRand == $c)? $ansRand+rand(1,5) : $ansRand;
+                }
+            }
+
+
+
             $next_question = [
                 "question" => "What is C ? <br>  C = $a + $b .",
                 "option" => [  rand(1000,9999), $c ,  rand(1000,9999)],