The number classified as prime from the options provided is 29.
A prime number is a natural number greater than 1 that is not divisible by any other numbers except for 1 and itself.
- 69 is divisible by 3 and 23.
- 49 is divisible by 7.
- 39 is divisible by 3 and 13.
- 29 has no divisors other than 1 and 29.
Therefore, 29 is the only prime number among the options.