Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to date old photographs [title] Look at dress and hairstyles in the images. [step] If your image has people in it, their hairstyles and clothing styles can be an indicator of the time period. Take a look at clothing catalogs and photographs with known dates.

Ending1: Let yourself see what others wear and if this image looks good in action to you. [substeps] For example, portraits are more familiar, or even more friends, than photographs. Ending2: Determine what type of people you date and what their style and attitude means. Try to pick people who have similar looks. Ending3: These can help you narrow down a timeframe for your image. [substeps] Remember that things like style can be regional, so look for images of people from similar regions or spheres of cultural influence. Ending4: These photos can be as professional as a photograph, or as informal as a watch or watch. [substeps] For example, check a passport photo for a time period and a traveling photo of a person doing their morning routine.

Answer format: ending1/ending2/ending3/ending4