The correct answer is B) an electrical store.
Anytown households that earn more than $75,000 tend to buy sports equipment, while households that earn less than $75,000 tend to buy TVs.
The new business that would be most likely to succeed is an electronics store.
This is so because there is more population that earns less than $75,000 and they are people that like to spend their money on buying electronics such as TVs. So a new business dedicated to selling electronics (TVs, computers, mobile phones, and so on) could have a great opportunity with this population. More people would be attracted to visit the shop location or buying online.