The phrase "day" refers to an unspecified or non-specific day. In such cases, the correct article to use is "a" (indicating any general day).
The phrase "smile" refers to a non-specific smile. Since "smile" begins with a consonant sound, the correct article is "a" instead of "an".
The correct answer is (B) a, a.
Each question has a sentence that has an underlined part. Choose the option which rephrases the underlined part in the most appropriate manner in terms of grammar and usage.
In an attempt to boost their profits, many edible oil-producing companies have been engaging themselves in propaganda against commonly used oils and promoting exotic and expensive varieties of oils \(\underline{as\ more\ healthier\ options.} \)