Take context from the input text and decide on the accurate relationship between 'Direct Line' and 'insurance' from the options provided.
Options: creator, location of formation, chairperson, product/material produced

This week Britain’s largest motor insurer, Direct Line (Other OTC: DIISY - news ) , described driverless cars as an emerging risk which could have “a major impact on the size and nature of the insurance market and the role of insurers”.
product/material produced