What Criteria Influence Who Gets Appointed to a Position Within

What criteria influence who gets appointed to a position within the Executive Office of the President?

A) policy expertise or connections to the president's party
B) a graduate degree and previous work experience within the federal government
C) connections to either of the major political parties and experience working on a presidential campaign
D) familiarity with testifying before Congress and previous experience on Capitol Hill
E) an Ivy League degree and personal wealth (to help reward the president and the president's party later)