Final answer:
The statement refers to the negative effects of Environmental Tobacco Smoke on the fetal respiratory system as it can impair the essential development of respiratory structures and functions in the fetus.
The correct answer is options b) Fetal respiratory system.
Step-by-step explanation:
The statement "ETS clogs the lungs of the developing fetus" describes the impact of Environmental Tobacco Smoke (ETS) on the fetal respiratory system. Smoking during pregnancy can lead to the inhalation of nicotine, carbon monoxide, and over 7,000 other substances found in cigarettes, which are known teratogens.
These substances can impair fetal development, particularly the respiratory system, which begins to form around 4 weeks into gestation and continues to develop into childhood.
Exposure to harmful substances can affect the development of the respiratory bronchioles and alveoli and can hinder surfactant production, vital for lung function at birth. Moreover, smoking has been linked to many adverse outcomes in pregnancy, including preterm labor and sudden infant death syndrome (SIDS).
The correct answer is options b) Fetal respiratory system.