单选题
Which of the following is an external source of information?
A、
Value of sales, analysed for each customer
B、
Value of purchases, analysed for each supplier
C、
Prices of similar products, analysed for each competitor company
D、
Hours worked, analysed for each employee
【正确答案】
C
【答案解析】
All of the others are internal sources of information.
提交答案
关闭