Final answer:
It is not reasonable to blame Bt-containing crops for the loss of honeybees without scientific data, as multiple factors could be affecting their survival. Factors such as the Varroa mite, pathogens, and environmental changes must be considered as well.
Step-by-step explanation:
Without data from a scientific experiment, it is not reasonable to state that Bt-containing crops are responsible for the loss of honeybees. The correct answer would be: c. No, because there could be some other unknown or unmentioned factor affecting the survival of honeybees.
While the use of pesticides is thought to be one of several reasons for the decline in bee populations, blaming the Bt toxin without scientific evidence is speculative. It's important to consider other factors such as the Varroa mite, other pathogens, and decreases in bee nutrition due to changes in agriculture and urban development.
In the absence of conclusive data, attributing the decline of bee populations to any single cause, such as genetically engineered crops, overlooks the complex interactions that may be at play. This includes potential threats like the Varroa mite and environmental changes that reduce bees' access to a variety of forage plants.
Moreover, measures are being taken to protect bee populations, including policies by the U.S. Environmental Protection Agency to reduce the risk of pesticides to bees and discussions on the impacts of agriculture on milkweed, which is crucial for monarch butterflies.