Read the dialogue and answer the question.

Danu : Ika, you’re here!
Ika : Oh hey, Danu.
Danu : Are you here with your family?
Ika : Yes, I am. I came here with my parents, brother, and sister.
Danu : Where is your brother?
Ika : He is building a sand castle.
Which one is Ika’s brother?