bone marrow <span>contains hematopoietic stem cells, which give rise to the three classes of blood cells that are found in the circulation: white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes)</span>
Answer:
This is an unanticipated problem, which resulted in an adverse event.
Explanation:
It is important that a study drug be thoroughly evaluated before being applied to a patient, because an error can cause very harmful reactions. However, sometimes errors go unnoticed, even if the study coordinator is cautious and tries not to make any mistakes as it may harm the patient, as happened in the case shown in the question. These errors that go unnoticed refer to a situation where an unforeseen problem has resulted in an adverse event.
Answer: D
Quackery
Explanation:Quackery is a Deliberate misrepresentation of the ability of a medicine, a machine, a substance or a person to prevent or treat disease. It is may claims that you can alleviate something. It can also mean practising (Medicine) something when you have not being permitted by law or the governing body of that association to practice.
But from the question, they know that the health product is not effective yet they are selling to make profit. That's Quackery from the first definition given because their action was deliberate.
