单选题

Politician：Each year,small businesses create more jobsthan do large established businesses. Therefore, in orderto reduce unemploy- ment in the long term, we should provide incentives for starting small businesses ratherthan for expanding established large businesses.

Which of the following, if true, casts the most doubt on the politician's argument？

A、 In general, people employed by small businesses report higherjob satisfaction than do people employed by large businesses
B、 Among the currently unemployed are many people with sufficient job skills to perform the jobs that small businesses would create
C、 Providing an effective incentive for starting a business generally costs significantly less than providing an effective incentive for expanding a large business
D、 Ahigh proportion ofsmall businesses fail within three years of starting because of their owners' inexperience.
E、 Ahigh proportion ofsmall businesses fail within three years of starting because of their owners' inexperience.

【正确答案】 D

【答案解析】