Correct Answer:
Option A - Article ''An'' is most suitable word for the given space. It is used before nouns that begins with a vowel sound. It is also an Indefinite article used to indicate any non-specified member of a group or category.
Hence, option (a) is correct.
A. Article ''An'' is most suitable word for the given space. It is used before nouns that begins with a vowel sound. It is also an Indefinite article used to indicate any non-specified member of a group or category.
Hence, option (a) is correct.