They are asking questions about the stuff that you like for example in the first one is asking what you like if you like you can put “Me gusta leer “ or if you like to go to the movies you can put “me gusta ir a el cine “ I hope this helped :)
The answer is “vendedor/a”
Estamos: we are
estas: you are
estan: they are
The question says where are Maria and Adela? You should change “Maria and Adela” to they, do the third option is correct.