Answer:
OPTION (d) is correct.
Step-by-step explanation:
Business-to-consumer electronic commerce can be understood by the itself, it is generally come in role when a single customer can buy a good from companies site of business.
From the given options, OPTION (d) is right, because as we can see that Reuben who is a single consumer, buys a pair of shoes directly from the companies business site which is Mysticshoes.