Answer: D)XBRL(eXtensible Business Reporting Language)
Explanation: XBRL(eXtensible Business Reporting Language) is the type of XML(eXtensible Markup Language) that is used for the improvement in the transparency between the recipient and the business organization regarding the accessibility of the financial information.
The financial data is formatted uniformally so that the user can get the knowledge about the finance through the online sources like internet.
Other options are incorrect because HTML and XML are the markup languages but not for the financial area and PDF file is the file that stores data.Thus correct option is option(D).