The best type of soil for farming has a high organic content and a mixture of sediment particle sizes. Which of the following statements correctly explains how particle sizes affect the soil?
A) Small particles, such as clay, help to retain moisture.
B) Small particles, such as sand, help to repel chemical additives.
C) Large particles, such as clay, help in the flow of water.
D) Large particles, such as pebbles, help to retain moisture.