The World Almanac is a book of

    
A. facts and statistics.
B. living notable Americans.
C. synonyms.
D. articles published in magazines.
 

http://en.wikipedia.org/wiki/World_Almanac

The answer to this question can be found by understanding the purpose and content of the World Almanac.

To find the answer, you can follow these steps:

1. Begin by understanding that the World Almanac is a reference book that provides a wide range of information about various topics.
2. Review each option provided in the question to determine which one aligns with the typical content found in the World Almanac.
3. Option A states that the World Almanac is a book of facts and statistics. This option seems plausible because reference books like the World Almanac often contain facts and statistical information.
4. Option B states that the World Almanac is a book of living notable Americans. While the World Almanac may include information about notable individuals, it typically does not focus solely on living notable Americans.
5. Option C suggests that the World Almanac is a book of synonyms. While it is possible that the World Almanac may include some synonyms, this is not its primary purpose or focus.
6. Option D states that the World Almanac is a collection of articles published in magazines. While reference books may reference magazine articles, the World Almanac is not specifically focused on such articles.

Based on the analysis above, the most appropriate answer is A. facts and statistics. The World Almanac typically contains a wide range of factual information, statistical data, and reference materials.