[Solved] A collapse of lung tissue or an entire lung is A) emphysema. B) flail chest. C) bronchiectasis. D) atelectasis. Communications Decency Act: The Communications Decency Act is a section of United States federal law designed to regulate pornography and protect minors from inappropriate content on the internet, while also safeguarding the free speech rights of online platforms. United States Tax Code: The comprehensive set of laws governing federal taxes on individual and corporate income, inheritance, gifts, and sales, among other subjects. Political Party: A political party is an organized group of people with similar political aims and opinions, that seeks to influence public policy by getting its candidates elected to public office. Nineteenth Century: The period from the year 1801 to 1900, marking the 19th century of the Gregorian calendar.