Select the correct statements about elephant herd.
A. An elephant herd has mainly females and baby elephants upto 14-15 years old.
B. An elephant herd comprises members of a particular family,
C. The oldest female is the leader of the herd.
D. An elephant herd may accommodate any number of female elephant and the young ones.

Options

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

Answer

To solve the question regarding the correct statements about elephant herds, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement A: An elephant herd has mainly females and baby elephants up to 14-15 years old.**
- This statement is **true**. Elephant herds typically consist of females and their young, as males tend to leave the herd when they reach maturity.

2. **Statement B: An elephant herd comprises members of a particular family.**
- This statement is **false**. While herds do consist of related females and their offspring, they are not limited to just one family. Males often roam alone and do not stay with a specific family unit.

3. **Statement C: The oldest female is the leader of the herd.**
- This statement is **true**. In elephant herds, the oldest female, often referred to as the matriarch, leads the group and makes decisions for the herd.

4. **Statement D: An elephant herd may accommodate any number of female elephants and the young ones.**
- This statement is **false**. While herds can vary in size, they do not accommodate "any number." There is typically a limit to the size of a herd based on environmental factors and social dynamics.

### Conclusion:
The correct statements about elephant herds are:
- A. True
- B. False
- C. True
- D. False

Thus, the correct options are A and C.

### Final Answer:
The correct statements about elephant herds are A and C.