The Metadata API provides access to the following:
A. Your data model (including database schema)
B. S-Controls (including S-Config manifests)
C. Web-to-lead forms (including converted leads)
D. Business logic (including Apex code)
E. User Interface (including Visualforce pages)
Answer:
A. Your data model (including database schema)
D. Business logic (including Apex code)
E. User interface (including Visualforce pages)