Final answer:
Male babies whose mothers smoked during pregnancy are at the highest risk of SIDS.
Step-by-step explanation:
The group at the highest risk of SIDS (Sudden Infant Death Syndrome) among the options given is c) Male babies whose mothers smoked during pregnancy. Smoking during pregnancy increases the risk of SIDS due to the harmful effects of tobacco smoke on the developing baby's respiratory system. Studies have shown that infants born to mothers who smoke during pregnancy have a significantly higher risk of SIDS compared to infants born to non-smoking mothers.
Learn more about Sudden Infant Death Syndrome (SIDS)