A thermoplastic among the following is

Options

A. Bakelite
B. Polystyrene
C. Terylene
D. Urea-formaldehyde resin

Explanation

To determine which material is a thermoplastic among the given options, we need to understand what thermoplastics are and identify them from the options provided.

### Step-by-Step Solution:

1. **Understand Thermoplastics**: Thermoplastics are polymers that become pliable or moldable upon heating and solidify upon cooling. They can be remolded and recycled multiple times without significant chemical change.

2. **Identify Common Thermoplastics**: Some common examples of thermoplastics include:
- Polyethylene (PE)
- Polypropylene (PP)
- Polyvinyl chloride (PVC)
- Polystyrene (PS)

3. **Analyze the Options**: In the question, we need to identify which among the given options is a thermoplastic. Since the options were not explicitly listed in the question, we will consider the examples mentioned in the video transcript:
- Polystyrene
- Polyvinyl chloride

4. **Conclusion**: Both polystyrene and polyvinyl chloride are thermoplastics. Therefore, if either of these is listed as an option, it would be the correct answer.

### Final Answer:
A thermoplastic among the following is **Polystyrene** or **Polyvinyl Chloride**.