If you hope to study sociology, you will need to select sociology courses that are in keeping with your level of academic achievement and that will help you meet your career and educational goals. Sociology is commonly taught at most colleges and universities, so you should have little difficulty finding a school that offers sociology courses. In many cases, your primary consideration will be selecting a good school at which you can pursue sociology studies. If you are planning on becoming a sociologist or wish to pursue a career or graduate studies in a related field, it is important that you talk to an academic adviser who can steer you toward the courses that you need to take.
Sociology is the social science that focuses on studying societies and social interactions. Many colleges and universities offer students the opportunity to major in sociology at the undergraduate level, and many of these schools also offer graduate programs in sociology. It is also not unusual for schools to require students to take some social studies courses as part of their general education requirements. If you are choosing sociology courses because you must meet the general education requirement but are not interested in pursuing advanced studies in sociology, you may wish to simply take your school's basic sociology class, which can give you a broad view of the subject.
On the other hand, if you are going to pursue a career in sociology or in another area that requires significant training in sociology, you will need to be more careful about course selection. If you are specializing in sociology at the undergraduate level, you will typically be required to take several foundational courses in sociology as well as some elective courses. It may be wise to take a few foundational courses to find out which area of sociology interests you so that you can later choose more advanced sociology courses in your area of specialization.
As you progress in your sociology studies, if you find that your current school does not offer the sociology courses in the area that interests you, you may wish to consider taking courses at another school. You may wish to investigate online offerings from other colleges and universities so that you won't have to leave your current campus. It is important, however, that you make sure that any courses you take at other schools will transfer to your current school.