Refer to the input text as context and select the correct relationship between 'Warren East' and 'Rolls-Royce' from the available options.
Options: employer, founded by, industry, brand

Rolls-Royce Holdings Plc cut its full-year profit guidance and halted a share buyback to preserve cash, days after new Chief Executive Officer Warren East took over at the U.K. manufacturer of aircraft engines and marine products.
employer