Explanation
### Why this is right
- **Author**: Search by the person or organization responsible for the work.
- **Title**: Search by the work's title.
- **Subject**: Search by the topic covered.
### The concept
An access point is a searchable route into a catalogue. Author, title, and subject are standard access points in the material. A user's address and a book's cover colour are not standard bibliographic access points.
### The other options
- **Book cover colour**: It is not a listed catalogue access point and is an unreliable way to identify a work.
- **Borrower's home address**: It concerns a user record, not a bibliographic search for library holdings.
### Remember
Catalogue searches commonly begin with author, title, or subject.
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