Which Tennis player won his ninth men’s singles title at the Australian Open tennis tournament?

[A] Rafael Nadal

[B] Novak Djokovic

[C] Roger Federer

[D] Dominic Thiem

Something Important:

Ace Tennis star Serbia’s Novak Djokovic won his ninth men’s singles title at the Australian Open tennis tournament in Melbourne.
He defeated Russia’s Daniil Medvedev in the final match. Men’s Doubles title was won by Croatia’s Ivan Dodig & Slovakia’s Filip Polášek. Women’s Doubles title was won by Belgium’s Elise Mertens & Belarus’ Aryna Sabalenka. Mixed Doubles was won by Czech Republic’s Barbora Krejčíková & U.S.A ’s Rajeev Ram.