Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to start a coupon website [title] Choose your target customers and find a niche. [step] The market for finding general coupons and deals online is somewhat saturated with big names like fat wallet and groupon, so competition is fierce. However, a specialty website or coupon blog that offers deals in specific areas is a good alternative that can make extra income.

Ending1: Research what your target customers buy to figure out how to start a coupon website with relevant deals and low competition. [title] Create a website or blog, or hire someone to do it. Ending2: [substeps] Once you've selected your niche, start advertising. The best way to advertise is to have an existing coupon list already in place. Ending3: [substeps] Start by looking online to see what search engines are out there for current and relevant products and services. Keep an eye out for cute referrals in the advertising, for instance coupons for lunch money. Ending4: Still, you should also consider your target customers and how you will get in the customer's good graces. [substeps] Some common categories to look for include: holiday, sporting goods, used cars, child's clothing, construction, service, and intellectual property.

Answer format: ending1/ending2/ending3/ending4