Take context from the input text and decide on the accurate relationship between 'Porsche 911' and 'Porsche' from the options provided.
Options: brand, parent organization, director/manager, stock exchange

(REUTERS/Michaela Rehle) A worker inspects the new Porsche 911 GT3 RS sports car in the final check area at the Porsche factory in Stuttgart-Zuffenhausen March 10, 2015.
brand