What I’ve learned studying English: Choice is a difficult matter
At the beginning of every term, students settle back in to their classes or begin new modules, but depending on your course, which university you go to and which year you’re in, you will find yourself in these modules for quite different reasons. It might be compulsory because the staff deem the content “core” and “foundational”; perhaps you chose a specialist option or an elective purely because the topic fascinates you.