Pick up the correct statement from the following ?

A. Rate of digestion of sludge is more at higher temperature

B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C

C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C

D. All the aboveCorrect Answer

Correct Option: D. All the above

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