Which of the following soils is the best for plant growth?

Loamy soil is an ideal mixture of sand, silt, and clay (roughly 40-40-20%) that combines the best properties: good drainage from sand, moisture retention from silt, and nutrient-holding capacity from clay. Sandy soil (A) drains too fast, clay (B) holds too much water and becomes waterlogged, and gravel (D) lacks fine particles for nutrient retention. Most crops thrive in loam.