From 84cca097e37c2237a37726ea9cc7df3d4caef085 Mon Sep 17 00:00:00 2001
From: Angel Fernando Quiroz Campos <angelfqc.18@gmail.com>
Date: Sat, 6 Nov 2021 13:31:34 -0500
Subject: [PATCH] Exercise: Fix show question with answers preview

---
 main/inc/lib/exercise.lib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main/inc/lib/exercise.lib.php b/main/inc/lib/exercise.lib.php
index 506f66ce62..c5da13b30b 100644
--- a/main/inc/lib/exercise.lib.php
+++ b/main/inc/lib/exercise.lib.php
@@ -744,7 +744,7 @@ class ExerciseLib
                                     }
 
                                     if ($debug_mark_answer) {
-                                        if ($id == $answerCorrect) {
+                                        if ($id + 1 == $answerCorrect) {
                                             $attributes['checked'] = 1;
                                             $attributes['selected'] = 1;
                                         }