The correct answer is A. RMarkdown.
RMarkdown is a markup language that is used to create dynamic documents that can be exported to a variety of formats, including HTML, PDF, and Word. It is based on Markdown, a lightweight markup language that is easy to learn and use. RMarkdown documents can include code, equations, and tables, and they can be easily customized to create professional-looking documents.
LaTeX is a document preparation system that is used to create high-quality documents. It is a powerful tool that can be used to create complex documents with a variety of features. However, it is a complex system that can be difficult to learn.
HTML is a markup language that is used to create web pages. It is a simple language that is easy to learn and use. However, it is not a good language for creating complex documents.
D is not a valid option.