Here's a problem to solve: Which of the following is an example of asexual reproduction?

Among the 4 following options, which is the correct answer?

- A: Turtles lay fertilized eggs in a pit in the sand.
 
- B: Seeds form in pine cones after pollen reaches the cones.
 
- C: Fish release egg cells and sperm cells at the surface of the water.
 
- D: Trees send out rootlike extensions that produce new stems.
 