The correct answer is option 3, which states that normally only 1 egg is released during one menstrual cycle. This process is called ovulation and typically occurs around the middle of the menstrual cycle. However, it`s important to note that some women may release more than one egg during a cycle, especially in cases of certain fertility treatments or conditions like polycystic ovary syndrome. The release of multiple eggs increases the chances of multiple pregnancies, such as fraternal twins. Therefore, while the average number of eggs released during a menstrual cycle is 1, it can vary depending on individual factors.