A corporate website's appearance varies according to the department that owns the documents, but all documents follow the corporate look and feel. The HR department does not need a separate style sheet; it needs only a sheet containing the differences from the corporate sheet. Which statements justify this scenario?
A. Style sheets cannot stack on each other
B. Style sheets can stack on each other
C. Style sheets can override each other
D. Style sheets cannot override each other
Choose the most appropriate answer from the options given below:

1. AA, C Only
2. BB, C Only
3. CB, D only
4. DA, D only

Pick an option to check yourself, or open the answer below.