Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to get into graduate school [title] Pick the right classes. [step] This comes before getting good grades and may in fact be more important. You should pick classes that will impress graduate schools.

Ending1: This means choosing classes that are relevant to your field of interest and that are high level or challenging. [substeps] Complete required courses as early as possible. Ending2: [substeps] If your grades are solid for the year, look for courses like psychology, chemistry, philosophy, literature, etc. If your grades are high, look for courses like writing, art, and sociology. Ending3: You need to take courses in fine arts, science, history, and biology. [substeps] You'll need to do well in a given subject like history or statistics, as well as anything else that will help you become a lifelong student. Ending4: If your grades are low, take no interest in any of their courses. You don't want to alienate some of your professors or get through the semester feeling frustrated.

Answer format: ending1/ending2/ending3/ending4