please explain the question and answers.

Esta casa es bonita y esa es mas bonita, pero _____ es la mas bonita de todas.
a. ese
b. este
c. aquella
d. aquella (with accent on the first e)

2 answers

This house is pretty and that one is prettier , but (the one way over there) is the prettiest of all.

What is your guess?

Sra
Right you are!