diff --git a/19-object-oriented-programming/05_homework_03_answer.cpp b/19-object-oriented-programming/05_homework_03_answer.cpp
index 9d5fe5f..daa74fd 100644
--- a/19-object-oriented-programming/05_homework_03_answer.cpp
+++ b/19-object-oriented-programming/05_homework_03_answer.cpp
@@ -44,6 +44,8 @@ class D {
 	D(const A &a, const B &b, const C &c) : aa(a), bb(b), cc(c){
 		// By using & => we use same memory object hence faster and low memory
 		// By using const => we remember developers you shouldn't try to change this parameter
+	        // also this allow the user to pass temperory objects and const objects.
+		// this allows to receive Rvalue and Lvalue not just Lvalue
 	}
 };