Hola hehehe I speak Spanish and indeed I worry about you lol
I think is A but i’m not sure.
Answer:
When a feminine singular noun begins with a stressed –a or –ha, the masculine article un or el is used instead the feminine una or la, to aide in pronunciation. When the same noun is plural, the feminine article unas or las is used. The following feminine nouns use the masculine article when singular.
Explanation:
When a feminine singular noun begins with a stressed –a or –ha, the masculine article un or el is used instead the feminine una or la, to aide in pronunciation. When the same noun is plural, the feminine article unas or las is used. The following feminine nouns use the masculine article when singular.
The translation you are looking for is:
"The rental apartment is located on the ninth floor."
If you are looking for an answer instead of a translation, please comment on my answer! I'll replay ASAP if that is the case.