Answer:
A file is a collection of text or data stored electronically under a unique name as documents, worksheets, databases and programs.
Examples of files
- word document file
- E-mail file
- paint file
- PowerPoint file
- Excel file
- graphic file
- Microsoft file
- executable file
- text file
- music files
I believe the correct is the third option. It is important to preview sources before using them in your research because it reveals deeper concepts. Reading deeply the sources would allow you to have a deeper understanding of the sources and determine which parts of the sources are useful to your research.
First you start off with a strong intro that has the readers on the edge of their seat then u make a strong detailed interesting body paragraph
