Answer:
The correct answer is Eras atlético.
Step-by-step explanation:
The word atlético is equivalent to the word athletic in English.
We use this word to refer to a person who does sports, or who likes it very much.
In this case there is a sentence in the past perfect, where it says: "you liked sports".
Therefore, we can say that if a person liked sports, he was an athletic person.
And the correct term in spanish for the word athletic is Atlético.