Which of the following types of behavior involves hoarding?
a. feeding
b. aggression
c. breeding
d. grooming

Explanation:

The behaviour related with hoarding is feeding, mainly because hoarding's definition is to gather and store food, that is, to accumulate food sources preparing for future outcomes. This behaviour is often seen when drought season is coming. Also, some animals tend to hibernate when winter comes, like bears, during this period they tend to gather food until they can go out normally.

the insertion of a penis into a vagina.