. One People One State One leader was the policy of

Best Answer

Explanation:

Adolf Hilter was the leader of the Nazi Party and the Fuhrer of Germany.

• Under his leadership, Germany’s invasion of Poland in 1939 led to the outbreak of World War II.
• By 1941 Nazi forces had occupied much of Europe. 
• Mein Kampf ( My struggle) was written by Adolf Hilter
• He was assumed the title of Der Fuhrer.

Final Answer:

Hence,the correct option is B, Hitler.