option a because of the e search I did rite now
Explanation:
Nootropic also known as 'cognitive enhancers' are drugs that some people use in an attempt to improve memory, increase mental alertness and concentration as well as boost energy levels and wakefulness. There are many different nootropics.
Physicians determine preventative care screenings depending upon a persons age.
The answer is liver and pancreas
The correct answer is B.
Diet books and supplements cannot guarantee long-term success. For starters everyone is different and what might work for one person might not work for another. Diet books tend to be a mixture of personal opinion and healthcare facts and it's difficult to know what to completely trust. Most of the books and supplements tend to be based on current trends also and many have turned out to be inefficient.
The cycle is called Yo-Yo dieting.