I looked at their PDF files for the first two, since they combine wider tires (for those bad highways) with the single-speed gearing. They say those two bikes are for youth, ages 11 to 16 years old, with a height of up to 5 feet 3 inches or 160cm. Will they fit you properly?

The last bike says it's for adults, and I like how the rear rack does not attach directly to the rear axle, because that makes it easier to repair a flat tire on the rear wheel, so that bike gets my vote if you prefer a single-speed. The tires are thinner, but still big enough to handle some rough roads.