某仓库库存商品的编码、单价和年需求量如下表所示

该公司ABC分类的标准是：A类商品占总金额的80%，B类商品占总金额的15%，C类商品不超过总金额的5%。

请列出C类商品的编码，以及C类商品占用资金的总额。（要求写出计算机过程）

For each blank, choose the best answer from the four choices and write down on the answer sheet.

(21) is a six bytes OSI layer 2 address which is burned into every networking

device that provides its unique identity for point to point communication.

(22) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(23) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(24) is the popular LAN developed under the direction of the IEEE802.5.

(25) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

（22）是（）

A.ISO

B.ANSI

C.CCYIT

D.IEEE