Answer:
The answer is: B. Taking the ice cream cone after buying it.
Step-by-step explanation:
According to the text, the author gives remark and emphasis to the cone: be careful to not break it, get the cone under control, etc... So for him, the most important part of the ice cream is the cone, as if the cone breaks, the ice cream falls and everything is ruined!
The author doesn't talk about cleaning or cars, neither about deciding the flavor as a problem, and he gives tips on timing and holding in order to avoid the ice cream melting.