[Multiple accepted answers / Full credit] Official full credit

What you will learn

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

Saved full original question 73 (stem, both input bullets, all options A–D) and official key line, from the October 2025 exam and key PDFs (historical original; options recorded as evidence only, not displayed or narrated); Original exam PDF; cover (PDF page 1) and question 73 (PDF page 31, footer 'CBLE P. 32') rendered locally to /tmp only and viewed as images; Official answer-key PDF page 3 (questions 59–80) rendered locally to /tmp only and viewed; row 73 Answer cell empty, citation cell 'All examinees granted credit'; Text extract of the official key, line 73 (line 72 shown for context); Text extract of the exam cover (single-best-answer instruction; Title 19 reference); 19 CFR 152.102(a) definition of assist, including (a)(1)(iv) design work undertaken elsewhere than in the United States, the (a)(2) three-part exception and (a)(3)(iii) value when purchased from an unrelated person (full section text read); 19 CFR 152.103(b)(1)(iii), (b)(2), (d)(1) with Example 1, and (e)(1) apportionment (full section text read); First-round historical evidence report, item 2025oct-73 (recommendation 'retain hold; no key change'); linked from the evidence context; First-round report narrative, section 73 (read in full); Evidence context for this candidate (classification official_all_credit_no_unique_answer; originalOfficialAnswer ALL_EXAMINEES_CREDIT); Disputed-question treatment: label 'nonunique' and four-part structure · October 22, 2025 Customs Broker License Examination, 'Publication Number: 5258-1125' (as printed); October 2025 answer key 'CBP Publication: 5254-1125' (as printed; not reconciled). Exam regulation reference per cover: Title 19 CFR ('2024 Revised as of January 1, 2024', as printed). Text used: GovInfo 2024 annual Title 19 (revised as of April 1, 2024) sections 152.102 and 152.103. The cover date January 1 and the annual-edition date April 1 are recorded as found, not reconciled. No later rule or current law is used.
Explained using the historical edition for this exam.