The 2018 edition of Commonwealth Games was hosted by:

Australia

The correct answer is Option (3) → Australia

The 2018 Commonwealth Games, officially known as the XXI Commonwealth Games, were held in Gold Coast, Queensland, Australia. The event took place from April 4 to April 15, 2018, and featured athletes from various Commonwealth countries competing in a range of sports. The Gold Coast Games were the first Commonwealth Games to be held in Australia since the Melbourne Games in 2006.