Which type of roots are part of the plant's root system?

The correct selection focuses on the root types that function as part of the main rooting structure in plants. Taproots are characterized by a single, dominant root that grows deeper into the soil and can store nutrients. They often give rise to smaller lateral roots that branch out from the main taproot, enhancing stability and access to nutrients and water.

In contrast, fibrous roots refer to a network of thin roots that spread out horizontally from the base of the plant. While fibrous roots are important in many plant types, they are not paired with taproots in the way that lateral roots emerge from a taproot.

Rhizomes and tubers, though significant in certain plant systems, serve different functions in vegetative reproduction and storage, rather than forming the primary anchoring and water/nutrient absorption roots.

By focusing on the combination of taproots and lateral roots, it becomes clear how they work together to create an effective root system that supports the plant's overall health and growth.