This is a question with answer options. Goal: How to make garlic last longer?

Which of the following methods is more reasonable for accomplishing this goal?

Possible answers:
+ Halve the garlic and then freeze it in an ice cube tray with a small amount of oil and water
+ Slice the garlic and then freeze it in an ice cube tray with a small amount of water...I think the answer is
Slice the garlic and then freeze it in an ice cube tray with a small amount of water