Refer to the given statements and select the correct ones.
(i) Fossils are remains of hard parts of life forms in rocks.
(ii) Dinosaurs disappeared about 65 mya.
(iii) Animals called lobe fins evolved into reptiles.
(iv) Study of fossils is called palaentology.

Options

A. I,ii and iv
B. ii and iv
C. i,iii and iv
D. none of these

Answer

To solve the question, we need to evaluate each of the given statements about fossils and evolution to determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Statement (i)**: "Fossils are remains of hard parts of life forms in rocks."
- **Analysis**: This statement is correct. Fossils typically consist of the hard parts of organisms, like bones and shells, that have been preserved in sedimentary rocks over time. They provide crucial evidence for the study of evolution.

2. **Evaluate Statement (ii)**: "Dinosaurs disappeared about 65 mya."
- **Analysis**: This statement is also correct. The extinction of dinosaurs is widely believed to have occurred around 65 million years ago, likely due to a combination of factors including climate change and possibly an asteroid impact.

3. **Evaluate Statement (iii)**: "Animals called lobe fins evolved into reptiles."
- **Analysis**: This statement is incorrect. Lobe-finned fishes are believed to have evolved into amphibians, not directly into reptiles. Reptiles evolved later from amphibians. Therefore, this statement does not accurately represent the evolutionary lineage.

4. **Evaluate Statement (iv)**: "Study of fossils is called paleontology."
- **Analysis**: This statement is correct. Paleontology is indeed the scientific study of fossils, which helps us understand the history of life on Earth and the process of evolution.

### Conclusion:
The correct statements are (i), (ii), and (iv). Therefore, the correct answer is option A.