In the R K T Electric Company example, which statement is correct?

• A. There are four indexing units
• B. RKT is the key unit
• C. R is the key unit
• D. Electric is the third unit

Answer: (C)

The focus here is how to choose the primary access point (the key unit) for a multi-part corporate name. In this naming form, the leading element serves as the main identifier used for retrieval. In the R K T Electric Company example, the first element, R, represents the core identity of the entity and is used as the primary access point in the index. The remaining parts—the following initials and the descriptor—act as qualifiers or secondary access points to help distinguish or describe the record, but they do not override the leading element as the main key. So the correct statement is that the leading element is the key unit because it provides the most straightforward and consistent path for locating the record.