Answer:
The correct answer is Glomeromycota
Explanation: 
Arbuscular mycorrhizae are characterized by the formation of unique structures, arbuscles, coils and vesicles of fungi of the phylum Glomeromycota. They are a type of endomicorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant.
In this symbiotic association, the fungus helps the plant to capture nutrients such as phosphorus, sulfur, nitrogen and soil micronutrients. It is believed that the development of symbiosis with arbuscular mycorrhizae played a crucial role in the initial colonization of the earth by plants and in the evolution of vascular plants.
This symbiosis is a highly evolved mutualistic relationship found between fungi and plants.
 
        
             
        
        
        
Answer:
Substance C
Explanation:
From the statement scenario, it is given that no water remained above substance C. This then means that substance C actually absorbed all the water above it faster than the two other substances.
Therefore, we can deduce that substance C has the greatest porosity. This means that it has the highest amount of spaces within where the water can be absorbed.
Porosity has to do with the available empty spaces which is within a material. This property allows materials or substances to absorb other substances that are absorbable.