Leventhorpe Academy is a mixed, 11-19 secondary school and sixth form in the historic market town of Sawbridgeworth, Hertfordshire. The school became a business and Enterprise Academy in August 2011. The intake at age 11 is drawn mainly from the pleasant and prosperous towns of Sawbridgeworth and Bishop's Stortford and from the surrounding villages.
Leventhorpe Academy is a mixed, 11-19 secondary school and sixth form in the historic market town of Sawbridgeworth, Hertfordshire UK.
It is neither because the passage does not say what country Hertfordshire is located in but every other word in the sentence is correct so the AI marked it as correct.