What setting should be selected to prevent distortion of images when importing?

The setting to select for preventing distortion of images when importing is to maintain the aspect ratio. Maintaining the aspect ratio ensures that the proportional relationship between an image's width and height is preserved during the import process. When an image's aspect ratio is maintained, it will not be stretched or squished to fit a different format, thus avoiding any distortion that could affect the quality and appearance of the image.

The option to keep the original size might not always be practical if the image dimensions are larger than the project's format. Resize to fit format raster could lead to unwanted changes in aspects of the image, which could cause distortion. Auto fit image might adapt the image to fit the project parameters but could compromise image quality or presentation. Therefore, maintaining the aspect ratio is the best approach to ensure that the integrity of the image is upheld during importing.