16. What is the main idea of the passage?
(A) Although eating edible insects has been practiced long, it is still not widely accepted by the majority.
(B) The historical documents on entomophagy are too limited for people to understand the dietary behavior of insects.
(C) Bees and silkworms are not absent from agricultural innovations because of the economic value they can bring.
(D) The more developed a country is, the less ecologically dependent it will be on insects as food for humans and
feed for animals.