Take context from the input text and decide on the accurate relationship between 'Nintendo' and 'Tatsumi Kimishima' from the options provided.
Options: chief executive officer, developer, subsidiary, parent organization

TOKYO, Sept 14 (Reuters) - Japanese videogame maker Nintendo Co Ltd said on Monday it was promoting Managing Director Tatsumi Kimishima to replace former President Satoru Iwata who died of cancer in July.
chief executive officer