Differentiate between selling a product and service, what would you rather sell and why?

1-Note some the difference between selling a products and selling a service.
2-What you would rather sell and why(a product or service)?
3-You can reference a company you would like to work for and the product and/ or service they provide. Also tell me why you have interest in that company/product(s) or service(s).
* for the last question it’s like you give a small presentation about why you prefer selling a products or services. pick a real company you wanna work with & explain why you wanna do that ? why interest you?
Make sure no grammar mistakes & be simple to be understand