coordinating conjunctions - How to remove ambiguity due to having both an `and` and an `or` in a sentence

I have two questions related to the following sentence.

I have an apple or an orange and a banana

First I would like to confirm that the sentence is ambiguous because it could mean one of the following

• I have (i) an apple or (ii) an orange and a banana.




• I have (i) an apple and a banana or (ii) an orange and a banana.

Second, I would like to remove the ambiguity by making it mean the former. What are some ways to do this?