Phosphates are substances in the body that sometimes keep hydrogen ions in the urine so they are not reabsorbed by the body. if these ions were reabsorbed, the body’s ph would decrease, becoming too acidic. in this scenario, what is the role of the phosphates?

a. they are acting as thermoregulators.
b. they are acting as buffers.
c. they are acting as sensors.
d. they are acting as glucose producers.