Answer:
The correct answers are:
1. Actor, writer, musician : entertainment.
2. Dietician, optician : health care.
3. Litigator, paralegal, attorney : legal industry
Step-by-step explanation:
Industries dedicated to consumer service are those whose product is directed directly to a consumer, and not to a company.
The product they offer is a service, and not a material good.
These industries will have professionals or people specialized in the subject who will be in charge of offering and selling this product.
That is what we see in the examples.
The health industry will offer services dedicated to health, therefore it will have professionals dedicated to this field.
The legal industry will have services dedicated to legal issues such as a lawyer, a litigator, etc.
And the entertainment industry will be dedicated to shows, this is where actors, musicians or writers come in.