Andrew Johnson was the president who signed the treaty to purchase Alaska from Russia on March 30, 1867.
Couldn’t type the whole thing so Hope this helps:)
The Chief of Staff controls the president’s calendar, limits access to the president, manages the staff, and helps the president in all aspects of domestic and foreign policy.
Option: A
Explanation:
In president's office there are number of staffs to look after the legislation, administration and social welfare related matter. Chief of staff is the person who controls the president’s calendar, limits access to the president, manages the staff, and helps the president in all aspects of domestic and foreign policy.
Staffs handles all the important files, fixed meetings with different parties then finalize all these thing with their chief executive staff. Later he finally convey the important matters to the president.
I believe the answer is: Avoid influencing the audience and able to present the facts without bias.
The main duty of journalist is to present truth/facts and let the audience form our own opinion regarding the issues. If this standard does not exist, journalist would cherry pick to only present a certain news while put the other in the dark in order to steer public's opinion.
