Answer: Option C both a merchant and a non-merchant e-commerce company.
Explanation:
Harry's cars website helps people to buy from different dealership. This shows that Harry's cars is a non merchant where the firm does not own the cars or have the title to sell goods they are just a platform to sell others goods.
Harry's Cars sells bumper stickers on the website where the company owns the goods and sells them to make a profit on the e commerce website. This action of the company proves that company is a merchant e-commerce company. So Harry's cars is both merchant and non merchant e-commerce company it is a combined model.