题目选项分析

Which of the following best completes the passage below?

Established companies concentrate on defending what they already have. Consequently, they tend not to be innovative themselves and tend to underestimate the effects of the innovations of others. The clearest example of this defensive strategy is the fact that __________.

【选项】one of the first models of modern accounting machines, designed for use in the banking industry, was purchased by a public library as well as by banks