How was a successor to muhammad chosen?

muhammad named his successor before dying.
an angel was said to have revealed muhammad’s successor.
muhammad’s successor was elected by the clans.
the successor to muhammad was named in the qur’an.

Which of the following is not a reason why the supreme courts power of judicial review is thought to be too powerful? a .no checks and balance in place to ensure that c. courts can change legislation throughmisuse is not occurring with judicial reviewopinionb. no judicial review can occur without presidential d .courts can create legislation through opinionconsent

How was the age discrimination in employment act amended in 1986?

Louisiana purchase timeline can someone give me the answers, it's due tomorrow.