Which of the following sectors invests a greater percentage of sales in research than the biotech sector?

The biotech sector is known for its significant investment in research and development (R&D) as it is fundamental to its operations, which revolve around innovation and the development of new drugs and therapies. It often allocates a substantial portion of its revenue to R&D efforts due to the lengthy and costly nature of drug development, as well as the need for ongoing research to discover new treatments and stay competitive in a rapidly evolving industry.

Given this context, the assertion that none of the other sectors—Aerospace, Communications, or Electronics—invests a greater percentage of sales in research than the biotech sector is accurate. While each of these sectors also invests in R&D, their investment levels are generally lower as a percentage of sales compared to biotech. For instance, aerospace companies may invest heavily in specific projects or technologies, but the percentage of sales dedicated to R&D does not typically surpass the level seen in the biotech field.

Thus, the best answer reflects that, among the options provided, none of these sectors exceeds the biotech sector in the proportion of sales spent on research, leading to the conclusion that there is indeed no other sector that matches or surpasses biotech in this particular metric.