Take context from the input text and decide on the accurate relationship between 'battery industry' and 'battery' from the options provided.
Options: business division, currency, product/material produced, distribution format

I think one of the more puzzling facts in our industry over the last, which has become more transparent that last week or so has been a view of very, very soft demand from most people supply in the battery industry allied with a couple of big battery producers talking incredibly bullishly about what Q3 is going to look like for them.
product/material produced