Accessioning means most nearly

• A. Contains words grouped according to similarity of meaning
• B. Systematic treatise on a particular subject
• C. A label and a book showing who owns it
• D. Listing books in the order of purchase

Answer: (D)

Accessioning is the process of recording new materials as they enter the library and assigning each item a unique accession number, creating an official record of acquisitions. This work typically reflects the order in which items were received or purchased, building a running log of the collection’s growth. That’s why listing books in the order of purchase best fits accessioning—it captures the sequence and tracking of newly acquired items.

The other concepts describe different tasks: grouping terms by meaning is about subject indexing, a systematic treatise is a type of publication, and putting a label that shows ownership is about labeling items for possession rather than recording acquisitions.