The correct answer is: [D]: "¿Viste aquellos coches?" 
____________________________________________________
Note: Among the FOUR (4) answer choices provided, 
 → this very answer choice: [D]: "¿Viste aquellos coches?" ; 
 is the best answer choice.
____________________________________________________
 One translation of: "those cars"; would be: "esos coches" ; however, that is NOT among the answer choices given. 
{Note: "esos" is the correct, masculine plural form of the Spanish adjective [for the English word, "those"] that modifies "coches". Note: "los coches" is masculine plural.
Note: "aquellos coches" ; which is: 
_______________________________________________________
 "Answer choice: [D]: "aquellos coches" ; does translate to "those cars" ; 
→ and "aquellos" is the correct, masculine plural form of the Spanish 
adjective [for the English word, "those"].
Note: "aquellos coches" translates to "those cars" (in English)—in the sense of: "those cars [way over there]" .
_______________________________________________________