There are several ways to identify if a health service provider is a quackery or not. But the best solution is to check the establishment's practices. Be sure that there is a certificate from the government approving of the place. Nurses and doctors should check the vitals of patients. They must also always have a visible ID.
I don't understand what you are asking.<span />
Answer:
(D) The sperm nucleus and the egg nucleus must join.
Explanation:
Mental health, because stress induced by work, education etc
