Answer:
According to the passage, Paulina cries, “It is!” in line 13 because she has recognized her father on the street.
Step-by-step explanation:
As the girl is looking at the people without any excitement and pretty much unwilling to do so, her face changes and she reacts in a euphoric way running out of the house faster than ever because among all of the people she has seen the person that she was missing she has seen her father and excitedly run to his encounter.