Explain 3 ways in which a product can be designed ergonomically to suit a range of users

By producing a single product that is adaptable to different dimensions. This would allow it to provide a comfortable fit for the end user to suit the 5th to 95th percentile (for example an adjustable chair).

By producing a single design that accommodates all body sizes and shapes, except the 95th percentile and above (e.g. a door opening).

By designing a range of objects that cover all posibilites to suit the 5th to 95th percentile (e.g. clothes).