What is the extension of files created in Ms-Word 97- 2003

Answer: Option B

.doc - Word 97-2003 Document - The binary file format.
.docx - Word Document 2007 and higher versions - The default XML-based file format.
.docm - Word Macro-Enabled Document 2007 and higher versions - The XML-based and macro-enabled file format.
.txt - Plain Text - A document as a .txt file, the document loses all formatting.