4. Darwin mixed the organic fertilizer using his spade. After doing the task, he immediately
returned the spade in the storage room. Applying the concept of preventive maintenance
A. No, because the spade should never be placed in the storage area.
B. No, because he did not wash the spade before storing.
c. Yes, because the spade won't be lost and get stolen.
D. Yes, because he can find the spade easily.
did he do the right thing?




pls help po​