Take context from the input text and decide on the accurate relationship between 'Opel Corsa' and 'Opel' from the options provided.
Options: product/material produced, operator, brand, parent organization

So you see that we have been reasonably fast to bring those products to the market; and now we are entering a pipeline which is very levelized, one new model every year, starting with the Opel Corsa and then now coming the Opel Mokka.
brand