【单选题】The two-factor theory proposes that ________.
A.
within every human being, there exists a hierarchy of five needs and as each of these needs becomes substantially satisfied, the next one becomes dominant
B.
employees inherently dislike work and must therefore be directed or even coerced into performing it
C.
employees can view work as being as natural as rest or play, and therefore the average person can learn to accept, and even seek, responsibility
D.
the factors that lead to job satisfaction are separate and distinct from those that lead to job dissatisfaction
E.
achievement, power, and affiliation are three important needs that help explain motivation