Answer:
B.học sinh có thể tham gia mọi hoạt động phòng,chống tệ nạn xã hội phù hợp vs lứa tuổi
The answer is: B.drained their economic resources
During its military build-up, soviet union allocate most of their government budget to military and they also require the manufacturers in its territory to focus their operation in military weapons , vehicles, and supplies.
This caused the economic resources in soviet unions to be drained and the needs for goods that unrelated to military became abandoned.
Answer 2 is the correct answer.
