I would say A
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Primary succession can occur in essentially lifeless areas or regions in which the soil is incapable of sustaining life as a result of such factors as lava, sand dunes, or rocks left from a retreating glacier.
The Benedict's solution or the Fehling's solution is a chemical solution with clear blue color, which is a combination of the sodium citrate, sodium carbonate, and cupric sulphate pentahydrate. The Benedict's solution is used to test for the presence of the reducing sugars, such as glucose. When it is added into a solution and warmed, and it changes the color to orange, it confirms the presence of the reducing sugar in the testing solution.
Hence, the maple syrup contains reducing sugar.
Answer:
ATP, from glucose.
Glucose is from the food we eat.
