Royal Dutch Shell (Xetra: R6C1.DE - news ) agreed to buy smaller rival BG Group for $70 billion in the first large oil merger in more than a decade in April, giving the Anglo-Dutch company access to BG's multi-billion dollar projects in Brazil, East Africa, Australia, Kazakhstan and Egypt.
Take context from the input text and decide on the accurate relationship between 'BG Group' and 'Royal Dutch Shell' from the options provided.
Options: chief executive officer, parent organization, original broadcaster, product/material produced