How did Charlemagne attempt to ensure his children would rule after he died

i think the answer is a and i hope this ; ))

an earnest tone.

because portia wants to know why brutus has been acting strange lately.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.