<span>B. occur when a patient doesn't produce enough leukocytes.</span>
Neutropenia, or a decreased in the White blood cell neutrophils, also seen as leukopenia or granulocytopenia.
Answer: Gateway drugs
Explanation: Gateway drugs refers to the fact that the use of a psychoactive drug is associated with a greater probability of using more drugs. The theory about these drugs has been around for a long time. These drugs are easily accessible and may seem harmless to some extent, but they create addictions, leading the person to want to consume something stronger.
I believe that people with down syndrome are more likely than the general population to develop Alzheimer's disease in late life.