Which of the following is a prime number ?

Options

A. 11
B. 22
C. 33
D. 44

Answer

To determine which of the given options is a prime number, we need to understand the definition of a prime number and then analyze each option accordingly.

### Step-by-Step Solution:

1. **Understand the Definition of a Prime Number**:
A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In simpler terms, a prime number has exactly two distinct positive divisors: 1 and itself.

2. **List Examples of Prime Numbers**:
Some examples of prime numbers include: 2, 3, 5, 7, 11, 13, 17, 19, 23, etc.

3. **Analyze Each Option**:
Let's assume the options provided are:
- Option A: 11
- Option B: 22
- Option C: 33
- Option D: 44

Now, we will check each option to see if it is prime.

- **Option A: 11**
- Divisors of 11: 1 and 11.
- Since it has exactly two distinct divisors, **11 is a prime number**.

- **Option B: 22**
- Divisors of 22: 1, 2, 11, and 22.
- Since it has more than two distinct divisors, **22 is not a prime number**.

- **Option C: 33**
- Divisors of 33: 1, 3, 11, and 33.
- Since it has more than two distinct divisors, **33 is not a prime number**.

- **Option D: 44**
- Divisors of 44: 1, 2, 4, 11, 22, and 44.
- Since it has more than two distinct divisors, **44 is not a prime number**.

4. **Conclusion**:
After analyzing all the options, the only prime number among the given options is **11**.

### Final Answer:
The prime number from the options is **11**.