单选题 Which of the following can be concluded from this passage?

A、 Addition. subtraction, multiplication and division are the most important feature of accounting software.
B、 Business people often use personal computers to work out complicated problems with the aid of accounting programs.
C、 Business people use the accounting software because it is complicated but inexpensive.
D、 An accounting program is a set of instructions that tells a personal computer merely to favour business people.

【正确答案】 B

【答案解析】根据文章第二段，可排除A)，C)，D)．这段所给例子正是B)选项的意思。