The need to improve coordination of strategic military forces prompted the development of the Internet as we know it today

A(n) ________ is used to query unrelated tables or queries and combine the results into a single dataset. This type of query is different from querying related tables as it combines two SQL SELECT statements

A) crosstab query B) SQL query C) subquery D) union query

Viewers of a website should always be able to easily find their way back to the ____________________ page.

Fill in the blank(s) with the appropriate word(s).