Leaders of the market for these remedies, like Beijing Tongrentang Co Ltd, have products with snakeskin, dried toad, centipede, scorpion and dandelion to treat swelling, and others with oyster, ginseng and black-bone chicken for menstrual pains.
Take context from the input text and decide on the accurate relationship between 'Tongrentang' and 'Beijing' from the options provided.
Options: headquarters location, developer, parent organization, stock exchange