The preposition "to" is used to indicate movement towards a specific destination.
The correct sentence should be:
"She is going to the market."
Thus, the correct answer is Option A ("to").
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 \(\underline{as\ more\ healthier\ options.} \)