The appropriate resolution for him to set the image is 72 Pixels Per Inch
Step-by-step explanation:
Image resolution is the highest and the standard quality in which the image must be and there are appropriate standard sizes to be displayed on each web pages
There standard size is set to be 72 pixels per inch and there are ways and the steps to be followed to optimize the images the name must be given in the plane language. The image dimensions and the product angles must be chosen wisely. The right type of file size must be chosen and there must be usage of thumbnails and image site maps