Analyze the relationship between 'Diet Pepsi' and 'PepsiCo' within the context of the input sentence.
Options: chairperson, publisher, manufacturer, 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