The verb estar is an irregular verb, that means, it does not follow the pattern of all other "regular" -AR verbs.
The verb estar means "To Be" for temporary characteristics.
Think LCP (Large Cheese Pizza)
L- Location
C- Condition
P- Participle.
Those are when you use estar.
Conjugations of estar:
I am yo estoy
you are(Informal) tu estás
he/she is / you are(Formal) el/ella está // ud. está
We are nosotros estamos
You all are (spain only) - Vosotros Estáis
They are Ellos/Ellas/Uds. Estan
Sentence: I am happy today
Yo estoy feliz hoy
Yo voy a mi amigo Juan en la sala de clase.
Answer:
Yo te pido dinero.
La vendedora muestra muchas chaquetas a Laura y a mi.
Nosotros pensamos en comprar regalos a nuestras madres.
Explanation:
Sentence number 1 may be a bit confusing for u probably, you must say: "Yo te pido dinero", but you can't say "Yo pido dinero a ti".
:)
The correct answer would be your choice A.
Because, "servidor" means: "a server" (referring to a person)
while "nariz" = "Nose," "chimenea" = "chimney," "arbol,"= "tree."
Hope that helps! :D