How long can sperm survive in a woman's vagina and uterus? A. 1 day B. 3 days C. 7 days D. 2 weeks Reset Selection

1. When sperm enter the female reproductive tract, they encounter different environments. Some parts, like the vagina, are more acidic, which can decrease sperm viability. 2. However, the sperm that reach the cervix and the uterus are in a more supportive, alkaline environment. Under optimal conditions, these sperm can survive for several days. 3. Medical studies indicate that sperm can remain viable in the female reproductive tract for up to \(7\) days. This is why the fertile window is often defined as several days leading up to ovulation. 4. Given the choices: - A. \(1\) day - B. \(3\) days - C. \(7\) days - D. \(2\) weeks 5. The correct answer is: **C. \(7\) days**