Which of the following is NOT related to the sport of swimming?

Correct option is D

The correct answer is (d) Penalty Corner
 Penalty Corner is not related to the sport of swimming. It is a term used in field hockey.
 Breaststroke, Backstroke, and Freestyle are all different swimming strokes used in competitive swimming.
 Breaststroke is a swimming style in which the swimmer's arms move simultaneously in a circular motion while the legs perform a frog kick.
 Backstroke is a swimming style where the swimmer lies on their back and uses alternate arm strokes and flutter kicks.
 Freestyle, also known as front crawl, is a swimming stroke where the swimmer uses an alternating arm motion combined with a flutter kick.
 The majority of swimming contests are freestyle races, which range in length from 50 metres (55 yards) to 1,500 metres (1,600 yards), or the mile.
 Since front crawl is the fastest surface swimming stroke, the word "freestyle stroke" is occasionally used as a synonym for "front crawl." Today, it is the stroke that is most frequently utilised in freestyle contests.