Explanation:

- Option 1: Lee Zii Jia

- ?? Correct Answer

- Lee Zii Jia won the All England Open men's singles title in March 2021, marking a significant achievement in his career.

- Option 2: Viktor Axelsen

- Viktor Axelsen is a top Danish player. He has won various titles but did not win the All England Open in 2021.

- Option 3: Lee Chong Wei

- Lee Chong Wei is a retired Malaysian player and a former world number one. He did not compete in the 2021 All England Open.

- Option 4: Momota Kento

- Momota Kento is a prominent Japanese player, known for his world number one ranking. He did not secure the 2021 title.