The correct answer is C. at.
The preposition “at” is used to indicate a specific location. In this case, the speaker is indicating that they live at a specific address.
The preposition “on” is used to indicate a surface or area. For example, you might say that you live on a street or on a farm.
The preposition “in” is used to indicate a place or area that is enclosed or has boundaries. For example, you might say that you live in a house or in a city.
The preposition “none of the above” is used when none of the other options are correct. In this case, none of the other options are correct because they do not indicate a specific location.