________are the examples of tissues, formed by dedifferentiation.

Options

A. Interfassicular cambium
B. Cork cambium
C. Both (a) and (b)
D. Tracheary elements

Explanation

To answer the question "________ are the examples of tissues, formed by dedifferentiation," we need to follow these steps:

### Step 1: Understand Dedifferentiation
- Dedifferentiation is a biological process where mature, specialized cells revert to a more primitive, unspecialized state, often resembling meristematic cells. This allows them to regain the ability to divide and form new tissues.

**Hint:** Think about how mature cells can change back to a less specialized form.

### Step 2: Identify Examples of Tissues Formed by Dedifferentiation
- The two main examples of tissues formed by dedifferentiation are:
1. **Intrafascicular Cambium**: This is a type of cambium found between the xylem and phloem in vascular bundles. It arises from dedifferentiation of parenchyma cells.
2. **Cork Cambium**: This is a lateral meristem that forms the outer protective layer of the plant. It also arises from the dedifferentiation of certain cells.

**Hint:** Look for tissues that are involved in secondary growth in plants.

### Step 3: Analyze Other Options
- The question may provide other options. For instance, if "tracheary elements" is mentioned, these are specialized cells (like tracheids and vessels) that do not undergo dedifferentiation; they only undergo differentiation.

**Hint:** Consider whether the options are involved in growth or are specialized cells.

### Step 4: Conclusion
- Based on the analysis, the correct answer to the question is that both intrafascicular cambium and cork cambium are examples of tissues formed by dedifferentiation.

**Final Answer:** Intrafascicular cambium and cork cambium are the examples of tissues formed by dedifferentiation.