Answer:
d. Convenience
Step-by-step explanation:
Chris decides to purchase to pack of bubble gum as he is checking out at Walmart, he didn't intend to buy it, but it was there. These routine purchases best represent convenience products. Convenience products are the goods which customers purchase frequently without any effort and planning. Customers are very less conscious about their purchases because these products do not cost that much, therefore, these decisions are not riskier. For example, buying magazines, newspapers, chocolates, cold drinks, chewing gums, candies and most grocery items. Convenience goods are mostly non durable.