I Think its a tie between a and b Maby a little d
One scientific belief held by both René Descartes and Isaac Newton is that "<span>(1) reasoned thought is the way to discover truth," since both of these men were progressive thinkers who challenged the religious status quo of the time. </span>
Because of the economic instability that took place due to the treaty of versailles. As well as resentment for the Western powers such as Britain. Mussolini used this resentment that Italian people had for the British to gain power as the Italians did not gain the land they were promised.