Minimum number of antenatal visits :

**Core Concept**
The World Health Organization (WHO) recommends a minimum number of antenatal visits for pregnant women to ensure optimal maternal and fetal health. The frequency and content of these visits are crucial in detecting potential complications and providing necessary interventions.

**Why the Correct Answer is Right**
The WHO recommends a minimum of 4 antenatal visits, which are typically scheduled at 4-6, 24-28, 30-32, and 36-38 weeks of gestation. These visits enable healthcare providers to monitor the mother's health, detect potential complications, and provide necessary interventions to ensure a healthy pregnancy outcome. Regular antenatal visits also promote a strong relationship between the healthcare provider and the pregnant woman, which is essential for effective communication and decision-making.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not align with the WHO's recommendations for antenatal care. The minimum number of visits is crucial in ensuring that pregnant women receive adequate medical attention to prevent potential complications.
**Option B:** This option is incorrect because it is too low and may not provide sufficient opportunities for healthcare providers to detect and manage potential complications.
**Option C:** This option is incorrect because it is too high and may not be feasible or necessary for all pregnant women.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the frequency and content of antenatal visits may vary depending on the individual patient's needs and medical history. Pregnant women with high-risk conditions or those with a history of complications may require more frequent visits.

**Correct Answer: A. 4**