Final answer:
Clay soil expands when it gets wet and shrinks when it dries.
Step-by-step explanation:
Clay soil expands when it gets wet and it shrinks when it dries.
This statement is A) True.
Clay soil contains fine particles of silt that give it its plasticity. When water is added, the particles absorb the water and expand, causing the soil to expand as well. When the water evaporates or is removed, the particles lose water and contract, causing the soil to shrink.