389.55p +1.05% Royal Dutch Shell (Xetra: R6C1.DE - news ) 'B' (RDSB) 1,906.00p +0.69% Royal Dutch Shell 'A' (RDSA) 1,892.00p +0.67% BG Group (LSE: BG.L - news ) (BG.)
Take context from the input text and decide on the accurate relationship between 'BG Group' and 'Royal Dutch Shell' from the options provided.
Options: industry, headquarters location, chief executive officer, parent organization