Which of the following statements about broad spectrum insecticides is true?

Broad spectrum insecticides are designed to control a wide variety of pest species, making option B the accurate statement. These types of insecticides work by disrupting the biological processes of numerous insects, which can include both harmful pests and beneficial organisms. This broad efficacy is advantageous in situations where multiple pest species are present, but it also means that beneficial insects, such as pollinators and natural pest predators, can be negatively impacted as well.

In contrast, the other options are not correct. Statements suggesting that broad spectrum insecticides only target specific pests, are less effective than targeted insecticides, or do not affect beneficial organisms do not align with the characteristics of broad spectrum products. Broad spectrum insecticides are not selective; their ability to affect a range of pests includes both pests and non-target beneficial insects, which can lead to ecological imbalances if not used judiciously.