Which of the following is an allylic cation? 
Definitions:
Augmented Reality
A technology that superimposes a computer-generated image on a user's view of the real world, thus providing a composite view.
Direct-Response Wholesaling
A type of wholesaling where products are sold directly to retailers or consumers in response to specific requests or orders.
Television Home Shopping Channels
TV channels dedicated to retailing goods directly to consumers through live presentations, offering viewers the opportunity to purchase items from the comfort of their home.
QVC
A multinational corporation specializing in televised home shopping that broadcasts to millions of consumers worldwide.
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