单选题：Read this text taken from an article about some key aspects

•Read this text taken from an article about some key aspects of operattons management．
•Choose the best sentence to fill each of the gaps．
•For each gap 9—14，mark one letter(A—H)on your Answer Sheet
•Do not use any letter more than once．
•There is an example at the beginning，(0)．

A
Other natural problems such as lightnin9，frost，drought，too much rain，etc．，will tend to be the major reason for the fluctuation in product quality and price because of availability．
B
All producers of whether it be a physical object or service have some basic elements in common．
C
For example，all managers in any organization will need to know how to train their employees，appraise their performance，and SO forth．
D
The end product then becomes an idea where it is deemed a useful idea due to the form，the time，or the place of their availability from the conversion process
E
For example，such fluctuations in the product quality or price may be due to the growing weather conditions of many plants of fruit and vegetables
F
Once a product is made available to the consumer，that product is sold and converted into cash for that company and the cycle continues．
G
The general goal for all production is to create some kind of value added，so the outputs are worth more to the consumer than just the sum of the individual inputs
H
In some situations the product will outweigh the service but in other situations it will be the opposite．
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