Information: - Sale Sharks is an English professional rugby union club that plays in the English Premiership. - Pat Sanderson (born 6 September 1977 in Chester) is a former England international rugby union player and a former flanker for Worcester. He is the brother of the former England player Alex Sanderson. - Rugby is a type of football developed at Rugby School in Rugby, Warwickshire, one of many versions of football played at English public schools in the 19th century. The two main types of rugby are rugby league and rugby union. Although rugby league initially used rugby union rules, they are now wholly separate sports. - A try is a way of scoring points in rugby union and rugby league football. A try is scored by grounding the ball (the ball must be touching the player when coming into contact with the ground) in the opposition's in-goal area (on or behind the goal line). Rugby union and league differ slightly in defining 'grounding the ball' and the 'in-goal' area. - Chester is a walled city in Cheshire, England, on the River Dee, close to the border with Wales. With a population of 81,340 in 2014, it is the most populous settlement of Cheshire West and Chester, which had a population of 332,200 in 2014. Chester was granted city status in 1541. - Rugby union, or simply rugby, is a contact team sport which originated in England in the first half of the 19th century. One of the two codes of rugby football, it is based on running with the ball in hand. In its most common form, a game is between two teams of 15 players using an oval-shaped ball on a rectangular field with H-shaped goalposts on each try line. - Alexander Sanderson ( born 7 October 1979 in Chester ) is a former English rugby union footballer who played in the back row for Saracens and Sale Sharks . He is the brother of Pat Sanderson who also played rugby for Littleborough RUFC . His rugby career blossomed under coach Brian Gornall at Kirkham Grammar School . His first Sale coach , John Mitchell , also had a great influence on him as did Steve Diamond and Jim Mallinder , both of whom he played alongside when he broke into the first team . He scored a try on his England debut against Romania in November 2001 , having captained the England midweek side in North America soon after being selected for the England XV against the Barbarians at Twickenham . He made his Six Nations debut as a replacement against Italy in March 2003 and was part of the wider 43 - man squad for the World Cup , playing in the pre-World Cup warm - up matches against Wales and France in Marseille . He was forced to retire from rugby in 2005 due to a back injury . - England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight. After reading the paragraphs above, we are interested in knowing the entity with which 'alex sanderson' exhibits the relationship of 'occupation'. Find the answer from the choices below. Choices: - rugby - rugby union player - united kingdom
A:
rugby union player