Midterm elections usually have the characteristic of lower voter turnout than Presidential year elections.
People usually feel less motivated and, as a result, less people vote during what is considered "off years." As a result, there is often more movement in who holds the House or Senate as a result of only die hard voters participating in the off year.
option [B] is right answer.
Answer: kings and courtiers; power politics around the royal court; ideas about what was ideal in a king—and what was not—and the health (or otherwise) of the kingdom as a whole. Hope this help a little XD
Commander in chief of the National Revolutionary Army (from which he came to be known as Generalissimo), he led the Northern Expedition from 1926 to 1928, before defeating a coalition of warlords and nominally reunifying China under a new Nationalist government.