Here's a problem to solve: During sexual reproduction, a sperm cell fertilizes an egg cell to form a fertilized egg. The fertilized egg then develops into a new organism. Which statement describes the primary advantage of sexual reproduction over asexual reproduction?

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

- A: Sexual reproduction produces identical offspring.
 
- B: Sexual reproduction results in less adaptable offspring.
 
- C: Sexual reproduction generates a large number of offspring.
 
- D: Sexual reproduction results in genetic variation in offspring.
 