Explanation:
the purpose of an invention strategy is to create or innovate something new and unique which will be beneficiary to the nation at large
Although the economy began to develop at first, in 1920, a civil war started which caused many bad things for the Russian economy. The government began obsessed with overtaking the westerners and this <span>caused the economy to suffer and caused economic disintegration, isolation, and famine.</span>
Well the answer b and c are both right but I would pick b
