The family or kula was the smallest social unit. Several families formed a grama, several gramas were associated with a vish, and a number of vish units constituted the jana. The family (kula) fits that evidence because it matches the specific chronology, agency and function contained in the question. A comparison with the alternatives is useful: The jana, The village (grama) and The vish are genuine historical terms or names, but each belongs to a different office, patron, text, region or sequence. The compact memory link is therefore The family (kula) together with the factual context above, not the isolated option letter.