Answer:
Van
Explanation:
Van refers to both the Aunt and Uncle as "they", they go to the mountains. All the other forms of ir refer to either I, he/she, you, we, etc.
Aquel,
“Aquellas” and “esa” are for girls, muchacho is referring to a boy. Aquel is the best answer
voy a reclamar las maletas <em>mías</em>
y el equipaje <em>tuyo</em>
el equipaje <em>mío</em>
