[Source or answer dispute] Official A: only "not sewn" is stated

What you will learn

Disputed-question explanation: official result first, then historical evidence, limitations and uncertainty.

May 1, 2024 CBLE full text (PDF text extraction): cover directions and prescribed references.; Cover statement of single best answer.; Question 28 stem and all four options as printed (Category IV – Classification).; Original exam PDF; page 18 (question 28) and page 1 (cover) rendered and physically viewed.; Official answer key title and publication number.; Answer key row 28 as printed.; Original key PDF page 1 rendered and physically viewed (rows 1–45, row 28).; Chapter 64 Note 1(b) as extracted.; Actual page image of Chapter 64 page 64-1, Notes 1(a)–(f), physically viewed.; Chapter 61 Note 6 (heading 6111).; Chapter 61 Note 6(b).; Heading 6111 and subheading 6111.20 'Of cotton'.; 6111.20.60 'Other' and statistical suffix 50 'Babies' socks and booties' (rates in the same extraction are not used).; Chapter 61 PDF page 62 (printed 61-62) rendered and physically viewed for the 6111.20 indentation hierarchy.; Chapter 61 Note 1 (knitted or crocheted articles).; Heading 6405 / subheading 6405.20 headers as printed (shown only to locate options C and D in Chapter 64; not analysed). · May 1, 2024 Customs Broker License Examination, 'CBP Publication: 3717-0524' (as printed); answer key 'May 1, 2024 Customs Broker License Exam Answer Key', 'CBP Publication: 3718-0524' (as printed). Exam reference per cover: Harmonized Tariff Schedule of the United States (2023 Basic Edition, No Supplements). Text used: HTSUS (2023) Chapter 64 Note 1 (page 64-1, actual page image) and the 6405.20 header lines; Chapter 61 Notes 1 and 6 (pages 61-1/61-2) and heading 6111 / 6111.20 / 6111.20.60 with statistical suffixes (page 61-62, rendered page image). Basic Edition identity relies on the prior Codex provenance record in video-pilot/2024may-28/source-review.json; no supplement, later edition, current schedule, duty rate or ruling is used.
Explained using the historical edition for this exam.