
Passage: A research report shows that with the economic development and reform and opening up, almost all the units related to planting and breeding in China have projects to introduce species from abroad. However, lotus-chinensis introduced as fodder in east China and spartina for beach protection in coastal provinces of China quickly spread and grew rapidly, invading grassland, forest areas and wasteland, forming dominant community of single species, resulting in the decline of the original plant community. Italian black bees introduced into Xinjiang quickly spread to the wild, so that the original fine wasp species Of Ili black bees almost extinct. So ____________ hold
Question: Which of the following most logically completes the above statement?
A. A.The introduction of foreign species may cause great harm to our biodiversity.
B. B.Efforts should be made to control the spread of plants such as lotus seed and spartina.
C. C.The introduction of species from abroad is intended to increase economic efficiency.
D. D.Alien species are found in 34 provinces, municipalities and autonomous regions in China.
Answer: