_____ won Men’s Singles title in Korea Open 2019 ?

1) Muhammad Rian Ardianto
2) Kento Momota
3) Fajar Alfian
4) Chou Tien-chen

Explanation:

The Korea Open 2019, a badminton Super 500 tournament was held at Incheon International Airport Skydom in Incheon, South Korea from September 24 – 29, 2019.