Which of the following gases can be used for the storage of fresh sample of an oil (which we use for eating or frying purpose) for a long time?

Inert gases like Helium on Nitrogen both can be used for the storage of fresh sample of oil for a long time, as they do not react with most elements, including oxygen. Thus, these gases create an inert environment for the oil and prevent its reaction or oxidation with any element in the environment and can be used to prevent become rancid.