Concept:
A
catalog card is used in traditional library catalog systems to record bibliographic details of books and other materials. These cards are organized systematically in catalog drawers for easy retrieval of information.
Step 1:Understanding catalog cards.
Catalog cards contain essential bibliographic information such as:
- Author name
- Title of the document
- Publication details
- Call number
- Subject headings
Step 2:Standard size of the card.
The internationally accepted standard size of a physical catalog card is
\[
12.5 \text{ cm} \times 7.5 \text{ cm}
\]
Step 3:Conclusion.
Therefore, the correct answer is
Option (B).