Which best explains how the structure of the office of the president fulfill the office’s role?
(a) the office is led by the chief of staff, who serves as a key adviser to the president.
(b) the office has multiple levels of staff and advisers who the president in many areas.
(c) the office is led by the vice president, who serves as a key adviser to the president.
(d) the office has a single level of staff and advisers who the president in many areas.

The office has multiple levels of staff and advisers who help the president in many areas.  

I just took the test the right answer is b

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: