Which of the following is not a role of the president?
a. chief justice
c. chief administrator
b. chief diplomat
d. chief of state

The answer is A. Chief Justice

All three other options are the role of the president, but the chief justice and the president can't be the same person.

The only possible reason a president could also held a position as a chief justice is if you;re living in a dictator country like north korea.

This shows that the president of the united states is not immune to the laws

Accumulating more land so that your country can continue expanding without running into problems such as overpopulation