Answer: The best description for the statement is d. Negative tone, allusion
According to the given statement, the narrator talks about a person who excelled in sports, but for some reason, he did not excel in basketball.
The term "Achilles Heel" means the weakness of a person.
Therefore, the correct answer is option D which gives a negative tone and also alludes to it.
So, yeah it's D: Negative tone, allusion.
Hope this helped ;)