First the question is asking If a descision was made to drain the wetlands which a wetlands is haves rich soil and nutrients which is good for farming and an agricultural action means someone would clear out a forest of farming reasons so I would say the answer is A
Catalase is an enzyme and it works best at 35 degrees fahrenheit
D-All cells do not contain the same types of enzymes.
The answer to your question is D. Reactants