A.I. Explanation:

Option 1: "Buildings"

Explanation: The text mentions that copyright protects original works of authorship, including architecture, but it does not specifically state that buildings themselves are protected. Therefore, this option is too broad and does not accurately reflect the text.

Option 2: "All books"

Explanation: While the text states that copyright protects written works like novels, it does not imply that all books are covered under copyright. This option is misleading as it suggests a universal application that is not supported by the text.

Option 3: "Films"

Explanation: The text explicitly states that copyright protects original works of authorship, including motion pictures. This directly supports the correctness of this option, as films fall under the category of protected works.

Option 4: "Computer components"

Explanation: The text does not mention computer components as being protected by copyright. Instead, it refers to computer software, which is a different category. Thus, this option is incorrect.

Option 5: "Nature’s song"

Explanation: This option is vague and does not correspond to any specific type of work mentioned in the text. The text refers to songs and lyrics, but 'Nature’s song' is not a recognized category of copyright protection.

Option 6: "Words accompanying music"

Explanation: The text includes 'lyrics' as part of the works protected by copyright. Since lyrics are the words that accompany music, this option is correct and directly supported by the text.

Option 7: "Public source graphs and chart"

Explanation: The text does not mention public source graphs and charts as being protected by copyright. This option introduces information not present in the text, making it incorrect.