Take context from the input text and decide on the accurate relationship between 'Fnac' and 'music' from the options provided.
Options: currency, product/material produced, operator, chairperson

Elsewhere, shares in French electrical goods retailer Darty (Other OTC: KESAF - news ) rocketed 19.1% after books and music retailer Fnac said it has made a proposal to buy the company for £533m.
product/material produced