A baby’s heartbeat starts:

A. Before the birth of child
B. After birth of child
C. With the birth of the child
D. After One day of birth

🧠 Explanation:

A baby’s heartbeat starts before birth, around 5-6 weeks into pregnancy. This biological fact is a key topic in health sciences, engaging students and medical professionals. Understanding fetal development clarifies prenatal care, relevant for obstetrics and pediatrics. The early heartbeat attracts those studying human biology, highlighting its role in monitoring pregnancy health and advancing medical technologies like ultrasound, emphasizing its importance in maternal and child healthcare.