OG 12 同志们帮帮忙!

The technological conservatism of bicycle manufacturers is a reflection of the kinds of demand they are trying to meet,The only cyclists seriously interested inin innovation and willing to pay for it are bicycle racers,Therefore, innovation in bicycle technology is limited by what authorities will accept as standard for purposes of competition in bicycle races.

which of the following is an assumption made in drawing the conclusion above?

A  high-performance bicycles are likely to be improved more as aresult of technological innovations developed in small workshops than as aresult of technological innovations developed in major manufacturing concerns.

B  Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition

C the authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design.

同志们帮帮忙,这道题我排除了其余两项,但这三项看了答案也不明白.

谢谢大家了