Answer:
an
Explanation:
Determiners are basically the words which are used before nouns.
Most of the times determiner plays the role of expressing the reference of that particular noun.
They help to identify whether the noun is specific or a perticular type.
There are different categories of determiners.
Article -a,an, the
Ordinals-first, second,third
Quantitative -no,some,many
Numerals -one ,two,three
demonstratives- this,that,these,those