Take context from the input text and decide on the accurate relationship between 'Diet Pepsi' and 'PepsiCo' from the options provided.
Options: publisher, manufacturer, chairperson, distributed by

SCOTTSDALE, Arizona (Reuters) - PepsiCo Inc. ( PEP.N ) plans to introduce a new, energized version of Diet Pepsi that includes more caffeine, as well as ginseng, a PepsiCo spokesman confirmed on Wednesday.
manufacturer