How can you predict it has less water content? It was not given. Now you have resorted to mere assumption. The volume of URINE was given. You are saying that urine has less water content; so how can it cause dehydration?yar seriously, yu jidher bhi jaye, as a brother, meri bad duayen teray sath hen.
as C causes less urine, that means it has less water content. and someone does NOT feels like peeing unless there is a pressure on their splinctor muscles by urinary bladder when it is filled with urine. more urine, more pressure on splinctor muscles. more water, more urine.
C causes less urine, we can predict it has less water content and more other salts and blah blah. so, to prevent dehydration, we should avoid drinks with less water content.
thats what i wrote, perhaps.
and i am saying again and again, there can be more than one possible answers to a single Q