Question: In what borough of Hertfordshire is the Garston Ladies FC located?

Context paragraphs:
High Elms Manor School: High Elms Manor School, formerly St Andrews Montessori, is a Montessory method primary school in Garston, Hertfordshire, England.  It is situated at High Elms Manor (Garston Manor), near Parmiter's School and St. Michael's Catholic High School.

Garston, Hertfordshire: Garston is a village in Hertfordshire, England.  Garston is contiguous with Watford and now, despite retaining a local identity, is effectively a suburb.  It is within the Stanborough, Woodside and Meriden wards of the borough of Watford, although a small number of its streets are in Hertsmere.

Garston Ladies FC: Garston Ladies FC is a football club for girls and women, based at Bushey Sports Club (formerly known as the Metropolitan Police Sports Club) in Bushey, Hertfordshire.  The club was formed in 1996 at Lea Farm School, Watford as Garston Girls FC and has grown rapidly to become one of the largest female-only clubs in Hertfordshire.  In May 2002, Garston Girls joined forces with Everett Ladies to form Garston Ladies FC.  The club was awarded the FA Charter Standard in December 2005 in recognition of its high standards.  Garston Ladies has become increasingly successful, winning a number of county cups and league titles.  A number of players have gone on to achieve England recognition including former England Under-23's goalkeeper Lauren Davey.

High Elms Manor: High Elms Manor is a grade II listed Georgian country house located near Garston in Hertfordshire, England.  It was built in around 1812, and was originally known as "High Elms", but from the 1890s to 2010 it was called Garston Manor.

Ditton Mill railway station: Ditton Mill railway station was on the western edge of Widnes, England.  It was located east of Ditton Brook on the border between Ditton and Halebank.  The station opened in 1851 on the Garston extension of the St Helens and Runcorn Gap Railway which was being built westwards towards Garston.  Through traffic to and from Garston commenced on 1 July 1852.  The line was taken over by the LNWR in 1864.

Garston (Merseyside) railway station: Garston station was a railway station in the Garston district of Liverpool, England.  The station was located on the Northern Line of the Merseyrail suburban rail network.  The station was closed in 2006 when it was replaced by Liverpool South Parkway, which is a combined bus and rail interchange.  The proximity of the stations was so close the platforms of South Parkway nearly merged onto the Garston station's platforms.

Garston Park: Garston Park is a park in Garston, Hertfordshire, a suburb of Watford in Hertfordshire.  An area of 6.4 hectares, about half of the park, is a Local Nature Reserve.  It is owned and managed by Watford Borough Council.

Bushey: Bushey (population 24,000) is a town in the Hertsmere borough of Hertfordshire in the East of England.  Bushey Heath is a large neighbourhood south east of Bushey on the boundary with the London Borough of Harrow reaching elevations of 165 m above sea level.

Kerys Harrop: Kerys Julia Harrop (3 December 1990) is an English football defender/wing back who currently plays for Birmingham City Ladies FC.  Kerys has also been involved with the England National Team at Under 19 and Under 23 level and was part of the Under 19 squad who won the European Championships in Belarus in 2009.  She was also a member of the Great Britain team who won a Gold medal in Kazan in the 2013 World University Games.  With Birmingham City Ladies, she helped win the FA Cup in 2012 and progressed with Birmingham to the semi-finals of the Champions League in 2014.

Garston (Hertfordshire) railway station: Garston railway station serves the Garston area of Watford in Hertfordshire, England.  It is the third station on the Abbey Line after Watford Junction and Watford North.  The station and all trains serving it are operated by London Midland.

Supporting paragraphs: Garston Ladies FC Bushey
Answer: Hertsmere borough