Jenny spends 32 hours a week, 50 weeks a year, operating a bicycle rental store that she owns at a resort community. She also owns a music store in another city that is operated by a full-time employee. Jenny spends 140 hours per year working at the music store. She elects not to group them together as a single activity under the "appropriate economic unit" standard. a. Neither store is a passive activity. b. Both stores are passive activities. c. Only the music store is a passive activity. d. Only the bicycle rental store is a passive activity