You are provided with the following materials
(i) Magnifying glass (ii) Mirror
(iii) Stainless steel plate
(iv) Glass tumbler
Which of the above materials will you identify as transparent?

Options

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

Explanation

To determine which materials are transparent among the given options, we can analyze each item based on the definition of transparency. A transparent material allows light to pass through it clearly, enabling us to see objects on the other side.

### Step-by-Step Solution:

1. **Identify the Materials**: We have four materials to evaluate:
- (i) Magnifying glass
- (ii) Mirror
- (iii) Stainless steel plate
- (iv) Glass tumbler

2. **Evaluate the Magnifying Glass**:
- A magnifying glass is made of glass, which is typically transparent. It allows light to pass through, enabling us to see objects clearly when viewed through it.
- **Conclusion**: The magnifying glass is transparent.

3. **Evaluate the Mirror**:
- A mirror has a reflective surface, usually coated with a thin layer of metal on the back. This coating reflects light rather than allowing it to pass through.
- **Conclusion**: The mirror is not transparent.

4. **Evaluate the Stainless Steel Plate**:
- Stainless steel is a metal that does not allow light to pass through. It is opaque, meaning you cannot see through it.
- **Conclusion**: The stainless steel plate is not transparent.

5. **Evaluate the Glass Tumbler**:
- A glass tumbler is also made of glass, which is generally transparent. It allows light to pass through, and you can see through it clearly.
- **Conclusion**: The glass tumbler is transparent.

6. **Final Identification**:
- From our evaluations, the materials identified as transparent are:
- (i) Magnifying glass
- (iv) Glass tumbler

### Answer:
The transparent materials from the provided options are the **magnifying glass** and the **glass tumbler**.

---