Step 1: Primary vs Secondary Evidence.
Primary evidence means the original document itself. Secondary evidence is evidence that is not the original but provides proof of its contents.
Step 2: Types of Secondary Evidence.
- Certified copies or ordinary copies of a document.
- Oral account of the contents of the document given by someone who has seen it.
Step 3: Conclusion.
Hence, both (a) and (b) are included under secondary evidence.