Help with a kwiz answer

Question

I had a question on a kwiz that was marked "nearly" or "almost there"

Aquel restaurante, ________ me recomendó Alberto, tiene unos postres exquisitos.That restaurant, that Alberto recommended, has some exquisite desserts.
el cual was "correct"que was "nearly"
In the question and answer just below mine, an answer says that que and el cual are interchangable. Why was this answer not just marked correct? How do we know which one to use to get "correct" answers? Does the "nearly" count against me?

Accepted Answer

Hola Nancy
In multiple answer questions, that is when more than one option from the menu is correct, the answers that you mark that are correct show as correct with a green tick. But if there is another option in that menu that is also correct and you didn't tick that one, the feedback from kwizbot will be for that question "nearly correct", simply because you didn't spot that other correct answer. There is nothing considered as "incorrect" in this case, but we want you to be aware that there is also another possible answer to that question which is mentioned in the lesson. 
If you go back to the results page for that test that you did, you will see that everything is marked with a green tick, nothing in red. 
To be more aware about this type of questions with more that one correct answer, watch out for this message when being presented with questions: [one, some or all may be correct] This will make you aware of the need for more than one correct answer. 
I hope this clarified it for you.
Saludos
Inma