It was Albert Einstein who signed the letter.
The answer is : A) Mercantilism. Hopes this helps.
Answer:
The northern Italian states held elections in 1859 and 1860 and voted to join the Kingdom of Piedmont-Sardinia, a major step towards unification, while Piedmont-Sardinia ceded Savoy and Nice to France.
Explanation:
Why were the French people willing to accept a dictator/Emperor after overthrowing their king? The French people were willing to accept an Emperor after the overthrow of their king because they loved the fact that he did not lead by divine right but because he earned it and was basically a normal person.