Most plants grow roots down into the soil to absorb water and minerals.
Beets and carrots are the roots of plants.
Most carrots grow  down into the soil to absorb water and minerals.
What grows into the soil to absorb water and minerals? 
Options:
a: NaCl
b: vegetation
c: burrs
d: Trees
e: grass
f: Carrots
g: Conifers
h: potatoes