If the ussr’s economy had remained agriculture-based rather than industrialized, then

the unemployment rate among men would have been much lower.
women would have been much less in demand in the workforce.
crop productivity would have led to larger, better nourished populations.
children would not have had to leave school early to work in factories.

women would have been much less in demand in the workforce PERIOD

Option B, women would have been much less in demand in the workforce.

Explanation:

The options that don't make sense are:  Options A, C, D

The option that makes sense is:  Option B, women would have been much less in demand in the workforce.

 Option B, women would have been much less in demand in the workforce.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

idk

explanation: