A study of HMOs in the United States found that:Question 4 options:A)doctors wrote an average of six prescriptions per pregnant woman for drugs that are known teratogens.B)doctors only prescribed drugs that were known to have no harmful effects during pregnancy.C)doctors wrote an average of three prescriptions per pregnant woman, including drugs that had not been proven to be safe during pregnancy.D)doctors wrote an average of 38 prescriptions per year for known teratogenic drugs.