Iron Deficiency Is Most Likely to Occur Under Which of the Following

Multiple Choice

Iron deficiency is most likely to occur under which of the following soil conditions?

A) soil with pH 4.3 and subject to frequent flooding
B) leached humid region sandy soil limed to pH 8.0
C) well drained humid region loamy sand (Spodosol) with pH 5.0
D) muck soil (Saprist) with pH 5.5
E) silt loam Mollisol with pH 7.5