Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to choose a rigorous college schedule for your first year [title] Review the school catalog. [step] This should list the requirements to graduate in your chosen major, and it is important that you understand what requirements you must fulfill. It will also give a brief description of the contents of the courses, which in turn will help you gauge how difficult each course will be and whether it will interest you.

Ending1: [title] Look at the class schedule for the first term. [step] Begin making a list of classes you wish to take. Ending2: [substeps] Early grades will definitely influence your grade grade, but keep in mind that requirements will vary by institution. If you do not meet the requirements early enough, your undergraduate program will decline. Ending3: [substeps] Often, college classes are designed to last you for some time after graduating, but it can be nearly impossible to create a full schedule. Begin by brainstorming a list of all the requirements in your chosen major. Ending4: [substeps] The diversity of experiences and curriculum choices may be as devastating as they seem. In addition to any prerequisite requirements, you will need to memorize the course structure.

Answer format: ending1/ending2/ending3/ending4