lsat2004/12-4-18

18. Decentralization enables divisions of a large institution
to function autonomously. This always permits more
realistic planning and strongly encourages innovation,
since the people responsible for decision making are
directly involved in implementing the policies they
design. Decentralization also permits the central
administration to focus on institution-wide issues
without being overwhelmed by the details of daily
operations.
The statements above most strongly support which one
of the following?
(A) In large institutions whose divisions do not
function autonomously, planning is not
maximally realistic.
(B) Innovation is not always encouraged in large
centralized institutions.
(C) For large institutions the advantages of
decentralization outweigh its disadvantages.
(D) The central administrations of large institutions
are usually partially responsible for most of the
details of daily operations.
(E) The people directly involved in implementing
policies are always able to make innovative
and realistic policy decisions.

我怎么觉得答案有错？大家能解释一下吗？