answer for this question is A
The Anti-diuretic Hormone helps to control blood pressure by acting on the kidneys and the blood vessels. Its most important role is to conserve the fluid volume of your body by reducing the amount of water passed out in the urine. And so in times of dehydration it could help your body save more water. I think the statement is correct.
5/8 of 6 is 3.75
Translating this into hours it’s just 3 hours [and .75 of an hour which is 45 minutes]
Answer: 3 hours 45 minutes