"It was divided among his grandsons and was weakened by internal power struggles" is the one among the following choices given in the question that describes the happening <span>to Charlemagne's empire after his death. The correct option among all the options that are given in the question is the fourth option or option "d".</span>
The translation in English is : what alternative technological solution allows the efficient use of water in the agricultural work of the family and community. Hope this helps :)
