**Answer:**

The correct answer is option 'A' which is shelter.

In the story, the shetty looked around and looked for shelter. Let's understand why shelter is the correct answer.

**1. Introduction:**
- The story mentions that the shetty is looking around.
- It implies that the shetty is in need of something specific.
- The options given are shelter, raincoat, tree, and home.

**2. The Need for Shelter:**
- A shelter refers to a place that provides protection and safety from the environment.
- Animals, including shettys, need shelter to protect themselves from various elements like rain, heat, cold, and predators.
- Shelter provides a safe and secure place for animals to rest, sleep, and raise their young ones.

**3. Analysis of Other Options:**
a) Raincoat: A raincoat is a protective garment worn by humans to keep dry during rain. However, shettys do not wear raincoats, so this option is not relevant to the story.
b) Tree: Trees can provide some shelter, especially from the sun or rain. However, in the given context, the shetty is actively looking around, suggesting it requires a more substantial form of shelter.
c) Home: While a home would provide shelter, the shetty is seen looking around, indicating that it is in search of shelter rather than its own home.

**4. Conclusion:**
- Considering the given context and the needs of animals like shettys, the most suitable option is shelter.
- Shelter would provide the shetty with protection and safety from the environment, fulfilling its need for security and comfort.

In summary, the shetty looked around and looked for shelter because shelter is essential for animals to protect themselves from the elements and ensure their safety and well-being.