Sweet potato is an example of________

Explanation

Step-by-Step Solution:

1. **Identify the Plant**: The question asks about sweet potato. We need to classify what type of plant it is.

2. **Understand the Classification**: Sweet potato is a type of root vegetable. We need to determine if it falls under any specific category of roots.

3. **Research Types of Roots**: There are different types of roots, such as taproots, fibrous roots, and storage roots. We need to focus on storage roots for this question.

...