if you don't know some history of USA already then do not go for USA history, i would reckon you Islamic history, we know some Islamic history first of all and then it will easy to memorize as well. Criminology is a good and scoring subject while sociology is good too. You need to choose some more subjects as you're points are not completed. Most important thing that you can't neglect is if you are choosing criminology go for Gender Studies as well as they are lil connected with each other. IR is a good subject you can cover that soon and easily as compare to some other law subjects. One more thing is if you are good with admin things go for business administration you would love to study that one.