A gerund looks like a verb but functions the same way as a noun. But, why does it look like verbs? What does it have in a sentence that a verb does? OBJECT is your answer. They both have objects. For instance, in the sentence, "I dropped my coffee mug" The gerund is "dropped" and it dropped an object (mug). Therefore, your answer is Object.
Let me know if you need anything else.
- Dotz