Select the correct statements about 'Desert Oak'.
A. It is a tree found in Australia,
B. This is a special kind of tree which has its roots growing from its branches.
C. The roots of this tree go deep into the ground till they reach water.
D. This tree stores water in its trunk. Local people use thin pipe to drink this water.

Options

A. A, B and D
B. A, C and D
C. B, C and D
D. A, B and C

Answer

To determine the correct statements about the 'Desert Oak', we will evaluate each statement one by one.

### Step-by-Step Solution:

1. **Statement A: It is a tree found in Australia.**
- This statement is **true**. The Desert Oak (Allocasuarina decaisneana) is indeed a tree native to Australia, particularly found in arid regions.

2. **Statement B: This is a special kind of tree which has its roots growing from its branches.**
- This statement is **false**. Desert Oaks do not have roots that grow from their branches. This characteristic is more commonly associated with certain types of tropical trees, such as mangroves.

3. **Statement C: The roots of this tree go deep into the ground till they reach water.**
- This statement is **true**. Desert Oaks have deep root systems that allow them to access water from underground sources, which is essential for survival in arid environments.

4. **Statement D: This tree stores water in its trunk. Local people use thin pipe to drink this water.**
- This statement is **true**. Desert Oaks can store water in their trunks, and local people have been known to extract this water using thin pipes.

### Conclusion:
The correct statements about the Desert Oak are:
- A (It is a tree found in Australia)
- C (The roots of this tree go deep into the ground till they reach water)
- D (This tree stores water in its trunk. Local people use thin pipe to drink this water)

Thus, the correct options are A, C, and D.