Critical Reasoning

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___.

A. ballpoint pens and soft-tip markers have eliminated the traditional market for fountain pens, clearing the way
for the marketing of fountain pens as luxury or prestige items
B. a highly successful automobile was introduced by the same company that had earlier introduced a model
that had been a dismal failure
C. a once-successful manufacturer of slide rules reacted to the introduction of electronic calculators by trying to
make better slide rules
D. 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
E. the inventor of a commonly used anesthetic did not intend the product to be used by dentists, who currently
account for almost the entire market for that drug.

OA C

Choice C is a match to the situation described in the original statement. Instead of responding to innovations in the marketplace with similar innovations, the slide rule manufacturer just keeps doing the same thing, albeit with some improvements. This shows that the company must be underestimating the impact of the electronic calculator, since it's not trying to develop something that will be competitive with that technology.

Guys can anyone give a decent reason why C is not right