阅读短文，用所给词的正确形式填空。

     Li Hong is the only child in her family. She loves her parents, and her parents love her, too. But now

 she has some __1__ (trouble). She thinks that her parents don't understand her. She wants to make her

  own decisions, but her parents always ask her __2__ (obey) them. For example, Li Hong is good at

 __3__ (play) ping-pong and she hopes to be a famous ping-pong player like Deng Yaping in the future,

 but her parents think it is difficult for her __4__ (achieve) this dream and she should be realistic. And if she

  spends a lot of time __5__ (practice) ping-pong every day, she will fall behind the others in her studies.

 Li Hong doesn't know what to do now.

管理决策的定义应包含（）

A、决策是个人作出的决定

B、决策为了优化目标和优化达到目标的手段

C、决策有若干有价值的可行备选方案

D、决策要进行方案评价并选择一个满意的方案

E、决策包括合理的设计、分析、比较、选择于决定方案的整个过程

F、决策有明确的目的