With the modernization of methods of travel and every continent becoming more accessible
That would be a medical professional.
The product manufacturer will be biased. Of course they will support the claim, because they make money if you believe the claim and buy their product.
It's better to consult the other sources, assuming of course that they are unbiased and do not have any conflicts of interest.
The correct option is B.
Under the terms of HIPAA, a covered entity refers to entities or individuals, who transmit protected health information for transactions for which the health department has a standard. A covered entity can be a health provider, a health plan or a health care clearing house. Rita is a covered entity because, she transmits information in electronic form in connection with transactions for which the health department has a standard.