This week's bubbly trading update reinforced this view, and allowed it to continue the 12% share price gain enjoyed during the past four weeks -- the London firm saw like-for-like sales advance 5% during January-June, with product rollouts like its Scholl Express Pedi and Durex Real Feel helping to drive shopper interest.
Take context from the input text and decide on the accurate relationship between 'Durex' and 'London' from the options provided.
Options: developer, headquarters location, parent organization, chief executive officer