Try Hard, Work Hard, and You'll Make It!
To help u study, Listen to this, It really worked for me! It may be strange at first, but once u get used to it, Ir'll help alot with concentration.
Good Luck!
Puffin
https://www.youtube.com/watch?v=uX6usZWiMAo&list=RDuX6usZWiMAo&index=1
This is how to conjugate the verb ESTAR (which means to be) in the present tense:
yo estoy, tu estás, el/ella/Usted está, nosotros estamos, vosotros estáis, ellos/ellas/Ustedes están.
Your sentence is I am home. In Spanish, the word YO stands for I in English. This means that you would use the form estoy in your example.
The correct answer is B. estoy.
I think it is formal it doesn’t say it formal but it does say the word usted is to show respect so i would say true its formal