Final answer:
The mother most often detects the presumptive signs of pregnancy, which include symptoms like missed periods, nausea, and breast tenderness.
Step-by-step explanation:
The most common detector of presumptive signs of pregnancy is B) The mother. Presumptive signs are those changes a woman might experience, which are suggestive of pregnancy but not definitive on their own, as they can be caused by other conditions. Examples include missed periods, breast tenderness, nausea, vomiting, fatigue, and frequent urination. The mother is usually the first to notice these changes due to her direct experience of physical symptoms.
The most common detection of the presumptive signs of pregnancy is done by the mother herself.
There are several signs that a woman may notice, such as missed periods, breast tenderness, fatigue, and morning sickness. These signs can vary from woman to woman and may not be experienced by everyone. However, it is important to note that a pregnancy test conducted by a healthcare provider is the most definitive way to confirm pregnancy.