Take context from the input text and decide on the accurate relationship between 'EU' and 'European Union' from the options provided.
Options: member of, location of formation, operator, business division

In the retinal disease area in the second quarter of this year, the European Commission granted orphan medicinal product designation to ADX-2191 for the treatment of retinal detachment, opening a new market opportunity for ADX-2191 in the European Union as drugs receiving the orphan medicinal product designation are eligible to protocol assistance, research funding and upon approval, 10 years of EU market exclusivity.
operator