Correct Answer: B

Rationale: Vaccination is a preventive measure used in public health to protect against infectious diseases by stimulating the immune system to develop immunity without causing the disease. It helps prevent the spread of infectious diseases within communities and is a cost-effective way to reduce the burden of illnesses.

Correct Answer: B

Rationale: Breastfeeding provides passive immunity to the infant by transferring antibodies from the mother to protect the infant from infections and illnesses. This is one of the key benefits of breastfeeding, as it helps boost the baby's immune system during the early stages of life.

Correct Answer: C

Rationale: Iron is crucial for preventing anemia in pregnant women because it is needed for the production of hemoglobin, the protein in red blood cells that carries oxygen. During pregnancy, a woman's blood volume increases to support the baby's growth, making iron even more critical to prevent anemia, a condition characterized by a lack of healthy red blood cells. Anemia can lead to fatigue, weakness, and other complications for both the mother and the developing baby. Therefore, ensuring an adequate intake of iron-rich foods or supplements is vital for the health and well-being of pregnant women.

Correct Answer: D

Rationale: The primary aim of the Family Planning Program is to provide couples with the information and resources necessary to control their fertility and make informed decisions about family planning. By offering education and access to contraceptives, the program empowers individuals to plan the timing and spacing of their pregnancies, contributing to their overall well-being and quality of life.

Correct Answer: B

Rationale: The World Health Organization (WHO) recommends exclusive breastfeeding for the first 6 months of life. This means that infants should be fed only breast milk (no other liquids or solids) during this period to ensure optimal growth, development, and health benefits.