When signing the declaration of independence, colonists' had motivations for seeking independence. funny coincidence lol. hope this helped :)
The WPB or War Production Board set the products that would be needed for war and they determined their pricing.
So I agree with you, the answer is A.
But I must admit I was a bit iffy between A and D but I'd still say that A is a better choice.
Hope this helped
The correct answer is:
In 1852 Count Camillo di Cavour became prime minister of the Kingdom of Sardinia. Austria’s domination over their country was the main obstacle to Italy's pursuit of unification. Cavour led to the unification of Italy by persuading Napoleon to a secretly planned war against Austria.