What is the relationship between 'Diet Pepsi' and 'PepsiCo' in the context of the input sentence.
Options: publisher, distributed by, chairperson, manufacturer

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