Which of the Following Statements Is True

Which of the following statements is true?

A) Atypical antipsychotics have little demonstrated positive effect on treating symptoms of schizophrenia.
B) Atypical antipsychotics are inferior to older medications causing psychiatrists to abandon them.
C) Although the atypical antipsychotics are superior to older medications, more work is needed to determine which of them are safest and most effective, and for which patients.
D) Researchers have determined which atypical antipsychotics are safest and most effective have identified which patients do best with which medicine.