The Word Count command on the Tools menu is a useful feature in word processing programs that allows users to determine the number of words in a document. However, it can also provide additional information about the document by displaying the number of other elements such as lines, characters, and paragraphs.

Lines:
The Word Count command can display the number of lines in the current document. This information can be helpful when formatting the document or when working with specific line requirements, such as in poetry or song lyrics.

Characters:
In addition to counting words, the Word Count command can also provide the number of characters in the document. This includes all characters, including spaces and punctuation marks. Knowing the number of characters can be useful when working with character limits, such as in essays or social media posts.

Paragraphs:
The Word Count command can also count the number of paragraphs in the document. This information can be helpful when organizing and structuring the document, especially when specific paragraph requirements are needed, such as in academic writing or reports.

All of the above:
The correct answer to the question is option 'D', which states that the Word Count command displays the number of words as well as the number of lines, characters, and paragraphs in the current document. This means that when you use the Word Count command, you will get a comprehensive overview of the document's word count and additional information about its structure and formatting.

In conclusion, the Word Count command on the Tools menu is a valuable feature that provides users with information about the number of words, lines, characters, and paragraphs in a document. This information can be beneficial for formatting, structuring, and meeting specific requirements for written work.