Answer: He used persuasion and blame to control everyone.
Explanation: He persuaded people in Germany to trust him and he blamed Jews for the destruction of Germany during WW1.
The bolded word here is the BESTSELLER. This kind of complement is a direct object complement. The adjective overnight denotes to the object bestseller which is an adjective. Another adjective complements another adjective, thus, the term direct object.
A (technically B too, but it’s better known for giving women the right to vote)