Single best option: B

Concise reasoning (1–3 sentences):
Delayed tooth eruption is well documented in rickets, cleidocranial dysplasia and cherubism, but hyperthyroidism tends to accelerate skeletal and dental development rather than slow it; therefore congenital hyperthyroidism is the exception [Mudgade 2023 PMID 38304513; Jensen & Kreiborg 1990 PMID 2341976; Kau 2012 PMID 21676623; Segni 1999 PMID 10524565].