Answer: Option D
Step-by-step explanation:
In case, tiger has not been killed by the hunter it could have produced more fertile offspring in his lifetime.
The tiger which is most fit is the one who can produce the maximum number of fertile offspring when it is alive.
No matter when the tiger is being killed by the hunter it is giving birth to 9 fertile offspring during his life so this tiger is the fittest tiger.
Hence, the correct answer is option D