If you give me the vocabulary words, I may be able to answer this properly.
Answer:
The history of domestic animals.
Explanation:
It is very broad, and many people will find it easier due to interest.
Answer:
at
Explanation:
It is most likely at but all of them gramatically make sense but not physically.
For example, you cannot stand in a door but the sentence is correct.
Standing on a door is quite strange but the sentence itself makes sense