Answer: A the computer revolution has given new meaning to old world
Explanation:
computers took the old world and changed it completely. you want to know a answer to something look what your doing looking it up. to me this is the only answer that would make since.
The answer is B, because we are learning about the national air and space museum, not the there museums.
When your search something online, and a web page is displayed, you can find the text that you want by using a keyboard shortcut. This keyboard shortcut would be CTRL + F, wherein it instantly locates the keyword you want in order for a fast and more efficient researching.