The central idea of this text is that
A a cultural shift is needed before the regular consumption of insects becomes acceptable.
B many people are considering eating insects for health benefits.
C some societies opt to eat insects instead of meat because animal proteins are too expensive.
D harvesting insects to use as food will have a negative impact on the environment.
The correct answer is A: a cultural shift is needed before the regular consumption of insects becomes acceptable.
Explanation: This option highlights the central theme that societal norms and acceptance play a critical role in whether people will regularly consume insects as a food source. While the other options present valid points, they do not encapsulate the main idea regarding the necessary change in cultural perceptions.