Answer:Lake Ara Shetan (Butajiri-Silti Volcanic Field)
1st O'a Caldera, with Lake Shala and the smaller Chitu water-filled maar
2nd Bilate River Volcanic Field (several water-filled maars)
3nd El Sod (small salt lake), South Omo Valley
Explanation: i no it
It's either A or C
Both are just wastage of water.
The subject of science is very broad. With that being said, I think there is no official regulatory board that decides the branches of science. Scientific developments are products of joined efforts of different scientists. These scientists could rebuke another's work provided there is evidence. As long as the theory is generally accepted by the scientists and no one rebukes it effectively, then it is a generally accepted fact and everyone adapts it.
Hence, the answer is B.