Final answer:
Correctly addressing a repeat missing order involves explaining the situation and offering to remake the order, and possibly providing a discount for future purchases to mend the customer relationship.
Step-by-step explanation:
When faced with a situation where a customer's order is missing for a second time and they are upset, the most professional approach would be to immediately address the issue. The best option out of the choices provided would likely be b) Explain the situation and offer to remake the order. This not only acknowledges the mistake but also shows initiative in wanting to correct it promptly. An additional gesture such as a) Apologizing and offering a discount on their next order could also be appropriate as it may help restore the customer's faith in the business. Options c) and d) are not advisable as they do not provide constructive solutions and could further damage the customer's experience.