Answer:
b/ a strong central government is essential to expansion
Step-by-step explanation:
The fascists in Europe, during the 1920's and 1930's, were on the opinion that in order for their countries to be strong, stable, and expand, have to have strong central government. This led to dictatorships in these countries, with the leaders having absolute power and eliminating all of the opposition to avoid any confrontations and unrest. This indeed made them very stable and powerful, which is why they managed to perform their planned expansions until they went for too much that they were capable of sustaining and ended up defeated.