Answer:
There will be 16 unique variations.
Step-by-step explanation:
you can have:
1. mint and mint
2. mint and chocolate
3. mint and strawberry
4. mint and vanilla
5. chocolate and mint
6. chocolate and chocolate
7. chocolate and strawberry
8. chocolate and vanilla
9. strawberry and mint
10. strawberry and chocolate
11. strawberry and strawberry
12. strawberry and vanilla
13. vanilla and mint
14. vanilla and chocolate
15. vanilla and strawberry
16. vanilla and vanilla
