I believe the answer you are looking for is B.
Your Answer would be D, Hope This Helps
About 35 years. Genghis Khan created the Mongol empire in 1206. By the 1230s Batu Khan invaded Russian and Bulgarian lands. In 1241 at the battle of Mohi Batu Khan defeater a combined German, Polish and Hungarian army. Further expansion ceased do to the death of Ogedei Khan. Batu Khans attention was turned to succession instead of invading Western Europe.
Answer:
a. More often than not, presidents make progress on their promises.
Explanation:
They were the first people to use wheels
