which best describes how dengs move to work with international experts on matters of science and technology…

which best describes how dengs move to work with international experts on matters of science and technology was a major departure from previous government policy in china?\no china had had a policy of self - reliance.\no china had refused to embrace modern technology.\no china had established local teams of experts.\no china had been closed to most foreigners.
Answer
Brief Explanations:
Pre - Deng, China emphasized self - reliance. Working with international experts signaled a shift away from this. Other options are inaccurate as China didn't completely refuse modern technology, had local experts before, and wasn't completely closed to all foreigners.
Answer:
China had had a policy of self - reliance.