Take context from the input text and decide on the accurate relationship between 'Eurogroup' and 'Jeroen Dijsselbloem' from the options provided.
Options: chairperson, position held, creator, subsidiary

Eurogroup chief Jeroen Dijsselbloem insisted on the need to build trust after six months of tortuous debt deal negotiations and a sudden referendum in which Greeks overwhelmingly rejected creditors' bailout terms.
chairperson