Final answer:
It takes about 30 minutes for a person to start increasing their urine output after drinking a large glass of water.
Step-by-step explanation:
The correct answer is b) 30 minutes.
After drinking a large glass of water, it generally takes about 30 minutes for a person to start increasing their urine output. This is because it takes some time for the water to be absorbed into the bloodstream, filtered by the kidneys, and then excreted as urine.
It's important to note that individual circumstances may vary, and factors such as metabolism, hydration levels, and overall health can affect the timing of urine production.