What does a comma do in a sentence?

• A. It adds emphasis
• B. It separates elements to clarify meaning
• C. It begins a new sentence
• D. It indicates a question

Answer: (B)

A comma is primarily used to separate elements in a sentence to clarify meaning, making it easier for readers to understand the relationships between different parts of the sentence. By using commas, writers can organize ideas, list items, or set off introductory phrases or clauses, which helps in conveying the intended message with clarity. For instance, in a series of items, commas prevent confusion by indicating where one item ends and another begins. This function is vital for ensuring that the reader interprets the sentence as intended, avoiding miscommunication. Therefore, the use of commas plays a crucial role in the structure of written language, facilitating a clearer understanding of complex sentences.