Which is a common childhood communicable disease that may cause severe defects in the fetus when it occurs in its congenital form?
Correct Answer: D
Rationale: Rubella is a common childhood communicable disease that can cause severe defects in the fetus when a pregnant woman contracts the infection, leading to congenital rubella syndrome. This syndrome can result in various abnormalities in the developing fetus, such as hearing loss, vision problems, heart defects, and intellectual disabilities. Rubella is particularly dangerous when contracted during the first trimester of pregnancy, leading to a higher risk of complications for the unborn child. Therefore, Rubella is a significant public health concern due to its potential impact on fetal development and the importance of vaccination to prevent its spread.