diff --git a/TR-0077-oneM2M and MEC integration scenario and mechanisms.md b/TR-0077-oneM2M and MEC integration scenario and mechanisms.md
index e0b1fa271f1a4f1366ec2b3883bfd536c6cc2f2d..6ca256462ed86b52f0bc028ce4674fde8476c276 100644
--- a/TR-0077-oneM2M and MEC integration scenario and mechanisms.md	
+++ b/TR-0077-oneM2M and MEC integration scenario and mechanisms.md	
@@ -155,11 +155,11 @@ This describes services that are exposed by ETSI MEC and additional features tha
 ### 5.1.1 Option A
 <mark> Architecture option A </mark>
 ### 5.1.2 Option B
-<mark> Architecture option A </mark>
+<mark> Architecture option B </mark>
 ### 5.1.3 Option C
-<mark> Architecture option A </mark>
+<mark> Architecture option C </mark>
 ### 5.1.4 Option D
-<mark> Architecture option A </mark>
+<mark> Architecture option D </mark>
 
 ## 5.2 Deployment options that offer services ETSI MEC to oneM2M