Which of the Following Statements About Class R's Nested Classes

Which of the following statements about class R's nested classes is false?

A) class R.drawable contains constants for any drawable items, such as images, that you put in the various drawable folders in your app's res folder.
B) class R.id contains constants for the views in your HTML layout files.
C) class R.layout contains constants that represent each layout file in your project (such as, activity_main.xml) .
D) class R.string contains constants for each String in the strings.xml file.