Correct Option: B

An unprecedented 86 countries won at least one medal during the Games. Chinese athletes won the most gold medals, with 51, and 100 medals altogether, while the United States had the most total medals with 110. American swimmer Michael Phelps broke the records for most gold medals in one Olympics and for most career gold medals by winning eight swimming events.
Note : Presently, the US continues to maintain its rank as the number one performer in the Olympics after winning the highest number of medals in the 2016 Summer Olympics (121 total; 46 Gold). China (70) and Great Britain (67) won the second and third highest number of medals at the Rio Olympics. Michael Fred Phelps the most decorated Olympian of all time, with a total of 28 medals. At the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and a silver. Nickname-”The Baltimore Bullet” &”Flying Fish”