W is the point where blood filtration starts in a nephron which makes option A the most appropriate choice.
<h3>What is a Nephron?</h3>
This is defined as the microscopic structural and functional unit of the kidney.
The renal artery carries blood from your heart to your kidneys during which the process of blood filtration starts immediately.
Read more about Nephron here brainly.com/question/242658
If you really want to they u should if not then don't
My guess would be if you know someone's personal and cultural preferences it can determine their general health and food and lifestyle decisions
