Which of the following is used to maintain glomerular filtration rate at 180 L/day even though mean arterial pressure may vary between 80 180 mm Hg?...

Which of the following is used to maintain glomerular filtration rate at 180 L/day even though mean arterial pressure may vary between 80 & 180 mm Hg? 

All of these are utilized

Myogenic response of the afferent arteriole

Tubuloglomerular feedback

Macula densa monitoring of filtrate flow and sodium content