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.
Answer:
Used or second-hand items may be damaged, making them less effective and putting you at a higher risk for injury.
Explanation:
The correct answer would be #3.
