Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to know what waves you should be surfing [title] Learn what " broken waves " or " white waves " are. [step] A broken wave is one that has already broken or crumbled and is now rolling in towards the beach. The waves that you should not be catching are known as " unbroken waves " or " green waves ".

Ending1: [substeps] Be aware that you should not be catching an incomplete wave as this can lead to breakage. [title] Know what " broken waves " are. Ending2: These are the waves that others have been searching for but do not yet know how to control. In order to view wave formation and break formation you should think about what colors of waves you are surfing on. Ending3: [title] Start off by catching smaller waves and progress to slightly larger waves with more power. [title] Select waves by looking out to the horizon. Ending4: The broken waves are known as " serious " waves or " windy waves ". [title] Learn which wave fins to look for.

Answer format: ending1/ending2/ending3/ending4