C. Because it's impossible to hold several cones and pay the bill
Explanation:
From this article about how to eat an ice-cream cone, the writer talks about the different challenges that come with buying and eating ice-cream cones such as indecision when selecting a flavor, everyone wanting to have a bite, looking for money to pay for the ice-cream and how to avoid such predicaments.
The author also cautioned against letting the cashier hand over other people's cones because it's impossible to hold several cones and pay the bill
