Topic: Article,

Best Answer Explained in Below-:

In the sentence, "Like her brother she is also - heiress to the property," the correct article to use before the word "heiress" is "an." This is due to the phonetic sound that begins the word "heiress."

In English, the use of articles (a, an, the) is determined by the sound that follows the article. "A" is used before words that start with a consonant sound, while "an" is used before words that start with a vowel sound. The word “heiress” begins with the vowel sound /eɪ/ (as in “hey”), even though it is spelled with an "h." Therefore, due to this phonetic context, "an" is the appropriate choice here.

Using "an" before "heiress" helps the sentence flow smoothly and maintains proper grammatical structure. If we were to use "a" instead, it would disrupt the phonetic harmony of the phrase, sounding awkward and incorrect. Thus, the use of "an" before "heiress" not only adheres to grammatical rules but also enhances the clarity and readability of the sentence.