Answer :
They are appointed by the president, approved by the Senate and may serve for life, is the correct answer.
Supreme court justices can serve for life, so choice 1 and 2 are not correct. As well, they are nominated by the president and then the senate votes to approve them. So choice 4 is incorrect and choice 3 is the correct choice.
Supreme court justices can serve for life, so choice 1 and 2 are not correct. As well, they are nominated by the president and then the senate votes to approve them. So choice 4 is incorrect and choice 3 is the correct choice.