Take context from the input text and decide on the accurate relationship between 'iPhone' and 'Apple Inc' from the options provided.
Options: owner of, chairperson, developer, founded by

TOKYO (Reuters) - Japan Display Inc's new chief executive said on Thursday the screen maker's "biggest client", widely understood to refer to Apple Inc (AAPL.O), is increasing orders ahead of the expected launch of a new iPhone this month.
developer