Hiciste is the past tense form of 'hacer'.
Hope it's right..
Answer:
C. la arquitectura.
Explanation:
Honestly just makes the most sense, because no one would think a backpack or taxi, or bus is really cool historically. Architecture usually is the most interesting historically.
Answer: Tú tienes una familia grande, ¿no?
Explanation: This conjugation chart should help :)