Choose the correct plural form of the word given below:Oasis

The correct answer is Option (1) → Oases

Plural of nouns ending in -is:

Some nouns that came into English from Greek end in -is. They change -is to -es in the plural. So oasis → oases. An oasis is a place in a desert with water and trees. “Oasises” is wrong because -is is changed, not kept.