Concept:Roots are underground plant parts that absorb water and minerals, while stems are usually above ground or modified structures like tubers and rhizomes.
Explanation:Carrot, beetroot, and radish are all true roots used as vegetables.
Potato and sweet potato are modified stems (tubers).
Ginger and turmeric are modified stems (rhizomes).
Thus, only option D contains only roots.
Answer:D. Carrot, Beetroot, Radish