Take context from the input text and decide on the accurate relationship between 'Smirnoff' and 'Diageo' from the options provided.
Options: manufacturer, employer, legal form, parent organization

But the situation took a turn for the worse a week before Diageo published its figures, when it emerged that the Smirnoff vodka maker had drawn the scrutiny of the Securities and Exchange Commission over the way it distributes alcohol in the US .
manufacturer