Which of the following plant organs is always included in the root system of a plant?
a.
roots
b.
leaves
c.
stem
d.
all of these

Option A

Explanation:

The plant organs that is always included in the root system is roots.The root system in the plants consists of the structures that are below the ground.

Such structures are tubers, roots, rhizomes, et cetera. The main function of root system is to supply water, hormones, minerals to the plant and within the plant.

The roots also provide anchorage to the plants by binding tightly to the soil particles.