the age of the soil particles the size of the soil particles the color of the soil particles the luster of the soil particles
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following has the greatest effect on the ability of soil to hold water?
Possibilities:
- the age of the soil particles
- the size of the soil particles
- the color of the soil particles
- the luster of the soil particles

the size of the soil particles