Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to do a literature search [title] Specify your topic. [step] To start your literature review, you'll need to narrow down your topic. You probably already have a broad topic in mind.

Ending1: Take some time to figure out what aspect of that topic you want to focus on in your search. [substeps] If you're doing a literature search for a class, you may have a broad topic to explore in that class. Ending2: Knowing what your topic is in terms of breadth will help you perform a more credible review. To do this, use the method at : [substeps] Microscope-this is usually the easiest technique to use for an online search for a topic. Ending3: However, this is not necessarily the case. You need to stick to it and narrow it down to something that interests you or interests others. Ending4: But even more important is to get more information. Say, for example, " smith, ben.

Answer format: ending1/ending2/ending3/ending4