Answer:
B. Both are responsible for advising the president.
Step-by-step explanation:
Although the President is a single person, this does not mean that he always works on his own. The President needs to collaborate with the legislative and the judicial branches of government. Moreover, the president needs to be aware of what the citizens desire. In order to help him navigate all these difficult tasks, the president is surrounded by a number of people who advise him on matters that require expertise. Both the President's Cabinet and the Executive Office of the President fulfill this task.