What Are the Limits Faced by the Supreme Court in Exercising

What are the limits faced by the Supreme Court in exercising internal control?

A) Subordinates do not defer to their principals and seek guidance because the life tenure of judges insulates the judges from one another.
B) Sharing responsibility for removal power with Congress makes it hard to agree on the conditions under which judges should be punished.
C) Once the Court decides a case, they are not allowed to hear it again even if a lower federal court disregards the ruling.
D) Presidential vetoes of Supreme Court rulings make the Court reluctant to take on highly charged political issues.