Answer:
A. a collection of organized data.
Explanation:
It can be a data source, or a database, an excel sheet. or access database. However, it must be well-formatted and hence organized. filtering of data is not necessary, as well as it is not any barrier to the number of the set of data, or the data being sorted. Unsorted data is also fine, and multiple set of data is also fine. It must be known that a data source can be formed from multiple sets of data through the query. And the resultant data source can be used by the mail merge. However, the data source must be a collection of organized data. Hence, A is the correct answer.
- Question -
What influenced work about the Vietnam War was written by Tim O Brian?
- Answer -
The Things They Carried
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These were a series of short stories O Brien wrote including in these stories his experiences with the Vietnam War

Answer: c. that's displayed in the title bar of the browser
Explanation:
The title element in the html write up is used to describe the title of the work that is been carried out.
It has the format <title></title>, the title name is indicated between the opening and closing title tag.
The title does not display on the main page of the Web user's display, but it can be seen on the title bar of the Web browser.
The title element help Web user to have an idea of what a Web page is about.