In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to keep customers loyal [title] Train your employees to always give the best customer service and make the best products. [step] Always deliver a quality item using quality service to keep people coming back. [title] Offer incentives for patronizing your business on a regular basis. <sep> (A) [step] These can include employing loyalty programs like punch cards or giving discounts every so often (e.g., get 20% off on every fifth purchase). You could also offer discounted or free upgrades to your loyal customers. (B) [step] Give your workers something to put on their calendars and show that you're impressed by their loyalty, enthusiasm and hard work. [title] Avoid discouraging board meetings from following your advice. (C) [step] Let your clientele know that you want to reduce their target audience. Get them to choose a product with quality information, or offer new items for a reasonable fee. (D) [step] Market the items in the instances of any stops you do. [title] Give your customers the freedom to control the prices from their store.
A