The accurate statements about the English Civil War are:
-
Some English people supported the king, while others supported the Puritans in Parliament.
-
The group known as the Roundheads defeated the king's forces and won the war.
The other statements regarding the choice of a new king and the brevity of the war are not accurate. After the war, the monarchy was abolished and King Charles I was executed; there was no new king chosen from Parliament. The war was also not brief; it lasted several years with multiple battles across different regions, not just centered around London.