The correct answer is "Somente as afirmativas 2, 3 e 4 são verdadeiras." This means that only statements 2, 3, and 4 are true. Statement 1 is false because there was not a significant process of urbanization in the early Middle Ages, and it did not follow the classical model of urbanity. Statement 2 is true because children had specific roles and responsibilities within the social and family organization of medieval society. Statement 3 is true because the notion of familial solidarity was indeed a fundamental characteristic of medieval society. Statement 4 is true because women were excluded from inheritance and their dowry, which they received upon marriage, was managed by their husbands.