Which of the following statements regarding the structure of microsporagium are correct ?
(i) Microsporangium is generally surrounded by four wall layers-epidermis, endothecium, middle layers and tapetum
(ii) outer three layers perform functions of protection and dehiscence of anthers.
(iii) Cells of tapetum undergo meiosis and produce micropore tetrads.

Options

A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (i),(ii) and (iii)

Explanation

To determine which statements regarding the structure of microsporagium are correct, let's analyze each statement step by step.

### Step-by-Step Solution:

1. **Statement (i):** "Microsporangium is generally surrounded by four wall layers - epidermis, endothecium, middle layers, and tapetum."
- **Analysis:** This statement is correct. The microsporangium, which is part of the anther, is indeed surrounded by four layers: the outermost layer is the epidermis, followed by the endothecium, then the middle layers, and finally the innermost layer, which is the tapetum.

2. **Statement (ii):** "Outer three layers perform functions of protection and dehiscence of anthers."
- **Analysis:** This statement is also correct. The outer three layers (epidermis, endothecium, and middle layers) serve to protect the microspores inside and are involved in the dehiscence process, which is the splitting of the anther to release the pollen grains (microspores) when they mature.

3. **Statement (iii):** "Cells of tapetum undergo meiosis and produce micropore tetrads."
- **Analysis:** This statement is incorrect. The tapetum is a layer of nutritive cells that provides nourishment to the developing microspores. It does not undergo meiosis; instead, meiosis occurs in the microsporocytes (microspore mother cells) within the microsporangium, leading to the formation of microspore tetrads.

### Conclusion:
- The correct statements regarding the structure of microsporagium are (i) and (ii). Therefore, the answer is that statements 1 and 2 are correct.