Clay in Soils Represents a Trade-Off in Nutrient Availability,such That

Clay in soils represents a trade-off in nutrient availability,such that

A) anions are less likely to leach out of soil and are difficult for plants to extract.
B) cations are less likely to leach out of soil and are difficult for plants to extract.
C) nitrogen levels are exceptionally high, but much of the nitrogen leaches away.
D) oxygen levels are exceptionally high, but much of the nitrogen leaches away.