Which of the following is the plural form of 'Oasis'?

• Oasis: [Singular]
- English meaning: an area in a desert where there is water and plants
- Bangla meaning: মরূদ্যান।
- Example: Her office was an oasis of peace and sanity amid the surrounding chaos.
- Plural form: Oases.

• উপরের উল্লিখিত প্রশ্নের বাকি অপশন গুলো ভূল। 

Source: Britannica, Cambridge & Accessible Dictionary.