Last year was the best experience I’ve ever got. I was the first winner of singing competition

I love singing since I was kid. I practiced so hard before the D-day. My parents were really supportive. They helped me to practice and prepared healthy food for me. They also gave me motivation to believe in myself.

That’s why winning singing competition meant so much to me.

What had been done by the writer in the text?

A. Passed an exam

B. Graduated from school

C. Got married

D. Won a contest