C

CRL of 23 cm and a foot length of ≈7 cm correspond to about 28 weeks’ gestation. At this stage the talus ossification center has just appeared and the testes are typically lying at the superficial inguinal ring—changes first documented from 26–28 weeks (≈7th lunar month) [Gentili, 1984, PMID 6726877; Heyns, 1987, PMID 2892824; Merz, 2000, PMID 10838708]. Thus the fetus is ~7 months old.