Glenn is very much captivated by the description of a newer, atypical antipsychotic because it is claimed that, unlike the older classic antipsychotics, the atypical antipsychotics __________.

A) are longer-lasting
B) reduce both positive and negative symptoms
C) have zero side effects
D) all of the above

The question mentions that the newer, atypical antipsychotic is claimed to have advantages over the older classic ones. Option B, reducing both positive and negative symptoms, is one such advantage that atypical antipsychotics have over older ones. Options A and C are not entirely correct as atypical antipsychotics may have longer-lasting effects and fewer side effects compared to older antipsychotics, but they are not entirely side effect or risk-free. Option D is incorrect as not all atypical antipsychotics may have all these advantages simultaneously.